CN214552290U - Dust-containing airflow rectifying and stabilizing device - Google Patents
Dust-containing airflow rectifying and stabilizing device Download PDFInfo
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- CN214552290U CN214552290U CN202120457030.0U CN202120457030U CN214552290U CN 214552290 U CN214552290 U CN 214552290U CN 202120457030 U CN202120457030 U CN 202120457030U CN 214552290 U CN214552290 U CN 214552290U
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Abstract
The utility model provides a dust-containing airflow rectifying and flow stabilizing device, which comprises a shell, a plurality of flow stabilizing channels and a plurality of rectifying channels, wherein the flow stabilizing channels and the flow stabilizing channels are arranged in the shell; a plurality of seamless blunt bodies are arranged in the rectifying channel, a first air flow channel is arranged between the top end of each seamless blunt body and the upper inner wall of the rectifying channel, and a second air flow channel is arranged between the bottom end of each seamless blunt body and the lower inner wall of the rectifying channel; a plurality of first flow guide blunt bodies are arranged in the flow stabilizing channel, and the surfaces of the first flow guide blunt bodies are streamline curved surfaces. The unstable dust airflow passes through the airflow channel between the seamless bluff body and the inner wall of the rectification channel, and the structure can break high-speed vortex and weaken backflow and vortex strength so as to prevent the vortex or the backflow from interfering the dust airflow entering the dust removal equipment; and a plurality of first flow guide blunt bodies with streamline surfaces are arranged in the flow stabilizing channel and can play a role similar to a Venturi tube, so that the flowing-out dust airflow has no vortex or backflow phenomenon, and the airflow is recovered to be in a standard flowing state in the tube.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field especially relates to a dusty air current rectification and current stabilizer.
Background
The pollution of coal-fired flue gas particles is a key point of common attention of the current society, small particles (the aerodynamic diameter is less than 2.5 μm, PM2.5 for short) in coal-fired flue gas are difficult to remove by traditional dust removal equipment, are easy to be absorbed by human bodies, are easy to cause serious atmospheric environmental pollution, and are one of main air pollutants causing low atmospheric visibility besides direct damage to human bodies.
In industrial production, usually, a coalescence device is additionally arranged before dust removing equipment, and the coalescence device can enable small particles to agglomerate and grow up, so that the small particles are absorbed by subsequent dust removing equipment, and the technical problem that the traditional dust removing equipment is difficult to capture and adsorb the small particles is solved. Be equipped with the vortex blade of special shape in the device of combining, the dust air current can produce the backward flow when the vortex blade, and little particulate matter can collide and attach to the surface at large granule thing with large granule thing under the effect of backward flow to realize "growing up" of particulate matter, and then avoid follow-up dust collecting equipment's escape window, improve dust collecting equipment's dust removal quality.
The coalescence device realizes the growth of particles through backflow, so the vortex still exists at the outlet of the coalescence device, the vortex does not meet the characteristic requirement of the dust removing equipment, the vortex can interfere the dust airflow entering the dust removing equipment, and the absorption of the dust removing equipment to the dust is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a dirty air current rectification and current stabilizer.
The technical scheme of the utility model is realized like this: the utility model provides a dust-containing airflow rectifying and flow stabilizing device, which comprises a shell (10), and a plurality of flow stabilizing channels (60) and a plurality of rectifying channels (50) which are arranged in the shell (10);
a plurality of seamless blunt bodies (51) are arranged in the rectifying channel (50), a first air flow channel is arranged between the top end of each seamless blunt body (51) and the upper inner wall of the rectifying channel (50), and a second air flow channel (52) is arranged between the bottom end of each seamless blunt body and the lower inner wall of the rectifying channel (50);
the inlet of the flow stabilizing channel (60) is connected with the outlet of the rectifying channel (50), a plurality of first flow guide blunt bodies (61) are arranged in the flow stabilizing channel (60), and the surfaces of the first flow guide blunt bodies (61) are streamline curved surfaces.
On the basis of the technical scheme, preferably, a plurality of heightening blocks (70) are arranged on the seamless bluff body (51), the seamless bluff body (51) is connected with the inner wall below the rectifying channel (50) through the heightening blocks (70), and a gap is preset between every two adjacent heightening blocks (70) to form the second airflow channel (52).
On the basis of the above technical solution, preferably, the inlet of the first air flow channel and the inlet of the second air flow channel (52) both face the inlet of the rectifying channel (50), and the outlet of the first air flow channel and the outlet of the second air flow channel (52) both face the outlet of the rectifying channel (50).
On the basis of the above technical solution, preferably, the block body of the block with raised height (70) is provided with a plurality of vent holes (71), inlets of the vent holes (71) face inlets of the rectifying channel (50), and outlets of the vent holes (71) face outlets of the rectifying channel (50).
On the basis of the above technical solution, preferably, the bottom end of the first flow guiding blunt body (61) is connected with the lower inner wall of the flow stabilizing channel (60), and a gap exists between the top end of the first flow guiding blunt body (61) and the upper inner wall of the flow stabilizing channel (60).
On the basis of the technical scheme, the combined type wind turbine generator is preferably characterized in that a plurality of combining channels (40) are further arranged in the shell (10), the combining channels (40) correspond to the rectifying channels (50) one by one, outlets of the combining channels (40) are connected with inlets of the rectifying channels (50), and a plurality of turbulent blunt body blades (41) are further arranged on the inner wall of the combining channels (40);
gaps exist among the turbulence blunt body blades (41), and the turbulence blunt body blades (41) are inclined towards the outlet of the merging channel (40).
On the basis of the technical scheme, preferably, a plurality of flow guide channels (30) are further arranged in the shell (10), and outlets of the flow guide channels (30) are connected with inlets of the coalescence channels (40);
the flow guide device is characterized in that a plurality of second flow guide blunt bodies (31) are arranged in the flow guide channel (30), the bottom ends of the second flow guide blunt bodies (31) are connected with the lower inner wall of the flow guide channel (30), and gaps exist between the top ends of the second flow guide blunt bodies (31) and the upper inner wall of the flow guide channel (30).
On the basis of the above technical scheme, preferably, the spoiler bluff body blade (41) includes base (412) and with bend portion (411) that base (412) are connected, base (412) with the inner wall laminating of merging channel (40) is connected, bend portion (411) orientation the export slope of merging channel (40).
On the basis of the above technical solution, preferably, the cross-sectional shape of the flow guide channel (30) and the cross-sectional shape of the merging channel (40) are both the same as the cross-sectional shape of the rectifying channel (50).
The utility model discloses a dirty air current rectification and current stabilizer have following beneficial effect for prior art:
(1) the structure can break high-speed vortex and weaken the strength of backflow and vortex to prevent the vortex or backflow from causing interference to dust airflow entering the dust removing equipment; in addition, a plurality of first flow guide bluff bodies with streamline surfaces are arranged in the flow stabilizing channel, and can play a role similar to a Venturi tube, so that the flowing-out dust airflow has no vortex or backflow phenomenon, and the airflow is recovered to be in a standard flowing state in the tube; meanwhile, the dust airflow can be blown to the leeward side of the seamless bluff body through the second airflow channel, and the scaling phenomenon of the leeward side of the seamless bluff body can be effectively prevented.
(2) Set up the air vent on the block of bed hedgehopping piece, can prevent effectively that the lee side of bed hedgehopping piece from appearing the scale deposit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the dust-laden air flow rectifying and stabilizing device of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural view of a seamless bluff body and a first guiding bluff body according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a second flow guiding blunt body according to the present invention;
FIG. 5 is a schematic view of aerodynamic movement of air flow and particulate matter under the influence of a bluff body blade;
FIG. 6 is a graph of particle size analysis of conventional dusty gas stream rectification and flow stabilizer dust emissions;
fig. 7 is a particle size analysis diagram of the dust discharge of the dust-containing air flow rectification and flow stabilizer of the present invention.
Description of reference numerals:
10-a housing; 20-a separator; 21-a through hole;
30-a flow guide channel; 31-a second flow bluff body;
40-coalescence channels; 41-a turbulent bluff body blade; 411-bending part; 412-a base;
50-a rectifying channel; 51-seamless bluff body; 52-a second airflow path;
60-a steady flow channel; 61-a first flow bluff body;
70-a block of padding up; 71-a vent hole;
80-small particles; 90-large particles.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
The description in the present application relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The embodiment of the utility model provides a dirty air current rectification and current stabilizer, as shown in fig. 1 and fig. 2, including casing 10 and a plurality of baffle 20.
The partition 20 may be made of wood, steel or other material. As shown in fig. 1, a plurality of baffles 20 are arranged in parallel in the housing 10, the baffles 20 are spaced from each other and divide the inner cavity of the housing 10 into a plurality of dust airflow channels parallel to each other, each of the dust airflow channels is divided into three sections, namely a flow guiding section, a merging section and a rectifying and flow stabilizing section, the dust airflow channel is divided into a flow guiding channel 30 at the flow guiding section, a merging channel 40 at the merging section, a rectifying and flow stabilizing section divided into a flow stabilizing channel 50 and a flow stabilizing channel 60, the inlet of the rectifying channel 50 is connected with the outlet of the merging channel 40, and the inlet of the flow stabilizing channel 60 is connected with the outlet of the rectifying channel 50.
The merging channel 40, as shown in fig. 1 and 2, has an inlet connected to the outlet of the guide channel 30 and an outlet connected to the inlet of the rectifying channel 50, respectively, of the merging channel 40. Turbulence blunt body blades 41 are arranged in the merging channel 40, and the turbulence blunt body blades 41 are used for controlling dust airflow in the merging channel 40 so as to form vortex and backflow.
A spoiler blade 41 is disposed in the merging channel 40, and a blade base may be disposed at the bottom of the spoiler blade 41 to support the spoiler blade 41. The turbulent blunt body blades 41m x n matrix type are arranged at intervals and fixedly connected to the inner wall of the coalescence channel 40, wherein m is more than or equal to 2, and n is more than or equal to 2. When the dust airflow passes through the spoiler blades 41, a backflow may be formed at a leeward side of the spoiler blades 41, and a forward airflow may be formed between gaps of two adjacent spoiler blades 41, and a forward airflow direction is substantially parallel to a moving direction of the dust airflow. The moving direction of the dust airflow is approximately parallel to the trend of the merging channel 40, the m arrangement direction is parallel to the moving direction of the dust airflow, and the n arrangement direction is perpendicular to the moving direction of the dust airflow. The turbulence blunt body blades 41 arranged in a matrix form can be uniformly distributed on the inner wall of the coalescence channel 40 to ensure that the dust airflow uniformly passes through the coalescence channel 40.
Specifically, the spoiler blades 41 may be disposed on the upper surface or the lower surface of the partition plate 20, or the spoiler blades 41 may be disposed on both the upper and lower surfaces of the partition plate 20, and the spoiler blades 41 may be inclined toward the outlet of the merging channel 40.
Further, as shown in fig. 5, the spoiler blades 41 may be arranged in a wedge shape, with the wedge-shaped spoiler blades 41 facing the outlet of the merging channel 40. The turbulent blunt body blade 41 may also be set to be "L" shaped, the turbulent blunt body blade 41 includes a base 412 and a bending portion 411 connected with the base 412, the base 412 is attached and fixedly connected with the inner wall of the merging channel 40, and the bending portion 411 inclines towards the outlet of the merging channel 40. In order to facilitate the adjustment of the angle between the spoiler blade 41 and the partition 20, a damping rotating shaft mechanism may be disposed at the bottom end of the bending portion 411, the damping rotating shaft mechanism is used to connect the base 412, and the spoiler blade 41 may be adjusted in inclination angle with the base 412 through the damping rotating shaft mechanism.
As shown in fig. 1 and 2, the inlet of the flow guide channel 30 can receive the dust airflow, the outlet of the flow guide channel 30 is connected to the inlet of the merging channel 40, the dust airflow guided out of the flow guide channel 30 enters the merging channel 40, and a plurality of second flow guide blunt bodies 31 are arranged in the flow guide channel 30.
The second flow guiding blunt body 31, as shown in fig. 1 and 5, has a bottom end connected to the lower inner wall of the flow guiding channel 30 and a top end spaced from the upper inner wall of the flow guiding channel 30. Specifically, the bottom end of the second flow guiding blunt body 31 may be connected to the partition plate 20, and a gap may exist between the top end of the second flow guiding blunt body 31 and the partition plate 20 adjacent to the top end, through which the dust airflow may pass.
The top end of the second flow guiding blunt body 31 is a streamline curved surface which can reduce the resistance borne by the dust airflow during moving to the maximum extent and ensure that the dust airflow still has higher flow velocity during discharging so as to improve the coalescence efficiency of the coalescence device; and the dust airflow can play a role similar to a venturi tube when passing through the streamline curved surface of the second guiding blunt body 31 (the principle of the venturi effect is that when wind blows over an obstacle, the air pressure near the upper end of the leeward side of the obstacle is relatively low, so that an adsorption effect is generated and air flows are caused), so that the dust airflow is restored to a standard flowing state in the pipe.
The number of the second guiding blunt bodies 31 may be determined according to practical situations, and is generally two. The dust airflow is discharged from the gap between the second guiding blunt body 31 and the partition plate 20, and the dust airflow can be uniformly guided to a certain degree, so that the dust airflow can smoothly and uniformly enter the coalescence channel 40.
Because the 'growth' of the particles is realized through the vortex in the coalescence channel 40, the vortex still exists at the outlet of the coalescence device, and the vortex does not meet the characteristic requirements of the dust removing equipment at the moment, so that the vortex can interfere the dust airflow entering the dust removing equipment and is not beneficial to the dust absorption of the dust removing equipment; moreover, the vortex can cause the already-coalesced large particles 90 in the coalescing device to disperse into small particles 80, affecting the coalescing effect of the coalescing device. In order to weaken the strength of vortex and backflow and ensure that dust airflow is discharged into the dust removing equipment more uniformly and stably, a plurality of seamless bluff bodies 51 are arranged in the rectifying channel 50.
The rectifying passages 50, as shown in fig. 1 and 3, correspond to the merging passages 40 one by one, the inlets of the rectifying passages 50 are connected to the outlets of the merging passages 40, and the dust airflow discharged from the merging passages 40 enters the rectifying passages 50. The outlet of the rectifying channel 50 may be connected to the inlet of the flow stabilizing channel 60.
The seamless blunt body 51, as shown in fig. 1 and fig. 3, has a bottom end connected to the lower inner wall of the rectifying channel 50, and a gap is formed between the top end of the seamless blunt body 51 and the upper inner wall of the rectifying channel 50 to form a first air flow channel (not shown). Specifically, the seamless blunt body 51 may be attached to the upper surface of the partition plate 20, the length of the seamless blunt body 51 may be set to be equal to the width of the partition plate 20, and a gap may exist between the tip of the seamless blunt body 51 and the upper partition plate 20 adjacent thereto to form the first air flow passage. The inlet of the first air flow path is directed toward the inlet of the rectifying passage 50, and the outlet of the first air flow path is directed toward the outlet of the rectifying passage 50. The dust airflow can be discharged through the first airflow channel. The number of seamless bluff bodies 51 may be determined according to the length of the rectifying channel 50. Typically, the number of seamless bluff bodies 51 is two.
In order to prevent the leeward side of the seamless bluff body 51 from being scaled, a second air flow channel 52 is provided between the bottom end of the seamless bluff body 51 and the lower inner wall of the rectifying channel 50, the inlet of the second air flow channel 52 faces the inlet of the rectifying channel 50, and the outlet of the second air flow channel 52 faces the outlet of the rectifying channel 50.
Specifically, a plurality of block-ups 70 may be disposed at the bottom end of the seamless bluff body 51, the block-ups 70 are used to support the seamless bluff body 51, the seamless bluff body 51 may be connected to the surface of the partition 20 through the block-ups 70, and a gap is preset between two adjacent block-ups 70 to form the second airflow channel 52.
When the dust airflow is introduced into the rectifying channel 50, a part of the dust airflow is introduced through the first airflow channel between the seamless blunt body 51 and the adjacent upper baffle plate 20, and a part of the dust airflow is introduced through the second airflow channel 52, so that the strength of vortex and backflow can be broken, and the dust airflow entering the dust removing equipment is prevented from being interfered by vortex or backflow; and to some extent prevents already coalesced large particles 90 from dispersing into small particles 80.
The dust airflow introduced into the second airflow channel 52 can blow away the dust accumulated at the bottom of the leeward side of the seamless bluff body 51, so that the scaling phenomenon of the leeward side of the seamless bluff body 51 can be effectively prevented; meanwhile, the dust airflow introduced from the second airflow channel 52 is combined with the dust airflow introduced from the gap above the seamless bluff body 51 on the leeward side of the seamless bluff body 51, and thus the strength of backflow or vortex on the leeward side of the seamless bluff body 51 is weakened.
In the same consideration, the block body of the block 70 may be provided with a vent hole 71, and the axis of the vent hole 71 is parallel to the axis of the second airflow channel 52, so as to prevent the leeward side of the block 70 from being scaled.
The outlet of the flow stabilizing channel 60 is connected with the inlet of the flow stabilizing channel 60, and the outlet of the flow stabilizing channel 60 can be directly connected with the dust receiving port of the dust removing equipment. In order to guide the dust flow in the flow stabilizing channel 60 uniformly, a plurality of first guide bluff bodies 61 are arranged in the flow stabilizing channel 60.
The first flow guiding blunt body 61, as shown in fig. 3, the first flow guiding blunt body 61 is connected to the inner wall of the flow stabilizing channel 60, and can be used to weaken the strength of vortex and backflow in the flow stabilizing channel 60, so as to guide a uniform and stable dust airflow. The number of the first guiding blunt bodies 61 may be determined according to practical situations, and is generally two. The bottom end of the first flow guiding blunt body 61 is connected with the lower inner wall of the flow stabilizing channel 60, and a gap exists between the top end of the first flow guiding blunt body 61 and the upper inner wall of the flow stabilizing channel 60.
The top end of the first flow guiding blunt body 61 can be set to be a streamline curved surface to ensure that the dust airflow is subjected to small resistance when passing through the flow stabilizing channel 60. The flow stabilizing channel 60 is internally provided with a plurality of first flow guiding bluff bodies 61 with streamline surfaces, which can play a role similar to a venturi tube (the principle of the venturi effect is that when wind blows over an obstacle, the air pressure near a port above the leeward side of the obstacle is relatively low, so that an adsorption effect is generated and air flows, and the flowing dust airflow has no backflow phenomenon, so that the dust airflow is recovered to be in a standard flowing state in the tube.
The outlet of the coalescence channel 40 is connected with a rectification channel 50 and a steady flow channel 60, and unstable dust airflow passes through the seamless bluff body 51, so that vortex can be effectively broken and the strength of backflow can be reduced; on the one hand, the large particles 90 which are well combined can be prevented from being dispersed into small particles 80 due to unstable vortex and backflow, and dust airflow can be more uniformly and stably discharged into the dust removing equipment, so that the dust removing equipment is ensured to have higher dust removing efficiency. Meanwhile, the bottom end of the seamless bluff body 51 forms a second airflow channel 52 through the heightening blocks 70 arranged at intervals, so that scaling on the leeward side of the seamless bluff body 51 can be effectively prevented.
As shown in fig. 3, a plurality of through holes 21 may be formed in the inner wall of the rectifying passage 50, and two adjacent rectifying passages 50 are communicated with each other through the through holes 21. The through holes 21 are used for exchanging pressure between the rectifying passages 50 and transferring energy of each vortex or backflow between the rectifying passages 50 to ensure that the pressure and the vortex energy in each rectifying passage 50 are approximately in the same horizontal line, so that each rectifying passage 50 can discharge uniform and stable dust airflow. The flow stabilizing channel 60 may also be provided with a through hole 21 therein for the same reason.
The dust flow moves along the guide duct 30, the merging duct 40 and the rectifying duct 50, and the direction of movement of the dust flow is substantially parallel to the three ducts. As shown in fig. 2, the spoiler blades 41 are arranged in an m x n matrix in a direction parallel to the dust flow and perpendicular to the dust flow and are fixedly attached to the surface of the partition plate 20. The m arrangement direction is parallel to the moving direction of the dust airflow, and the n arrangement direction is vertical to the moving direction of the dust airflow.
Specifically, the height of the turbulent bluff body blade 41 arranged on the partition plate 20 is 1-5 cm; the distance between two adjacent turbulent blunt body blades 41 arranged in the m direction is 3-15 times the length of each turbulent blunt body blade 41; the distance between two adjacent turbulent blunt body blades 41 arranged in the n direction is 1/10-1/2 of the width of each turbulent blunt body blade 41; the distance between two adjacent baffles 20 is 2.5-9 times the height of the turbulent blunt body blade 41.
The dust airflow enters from the inlet of the flow guide channel 30 and is discharged from the gap between the streamline-shaped curved surface of the second flow guide blunt body 31 and the partition plate 20, so that the dust airflow can be uniformly guided to a certain degree, and the dust airflow can smoothly and uniformly enter the coalescence channel 40.
As shown in fig. 6, when the dust airflow passes through the spoiler blades 41, a backflow may be formed at a leeward side of the spoiler blades 41, and when a backflow exists between gaps of two adjacent spoiler blades 41, the small particles 80 may rotate along with the backflow, and the large particles 90 may directly pass through the backflow due to an inertia effect. Thus, the small particles 80 collide with the large particles 90 and thus adhere to the large particles 90.
By arranging the turbulent blunt body blades 41 in the coalescence channel 40, dust airflow can form backflow on the leeward side of the turbulent blunt body blades 41 when passing through the turbulent blunt body blades 41, and two adjacent turbulent blunt body blades 41 are arranged at intervals to form a gap for generating forward airflow between the turbulent blunt body blades 41 to generate agglomeration and prevent dust accumulation; the back-flowing and forward-flowing air streams interact to form a flowing composite coalescence, and the dust particles will collide, adsorb, bind and grow. When the particles reach a certain particle size, the grown particles can continuously flow forwards due to the action and disturbance of various forces; because the flow field passing through the turbulent bluff body blades 41 rotates, different air flows have the opportunity to generate agglomeration on the leeward sides of the different turbulent bluff body blades 41 until the air flows out of the agglomeration channel 40; the small particles 80 will become larger, and the particles below PM2.5 will be reduced, so as to ensure that the dust removing equipment can perform efficient dust removing operation. And simultaneously, the utility model discloses a micronic dust coalescence device does not need change many times, can long-term effective operation, and the cost is lower relatively.
A seamless bluff body 51 is arranged in the rectifying channel 50, unstable dust airflow discharged from the coalescence channel 40 passes through the airflow channel between the seamless bluff body 51 and the inner wall of the rectifying channel 50, vortex can be broken, the reflux intensity can be weakened, and the well coalesced large particles 90 can be prevented from being dispersed to a certain extent, so that the micro dust coalescence device is ensured to have higher coalescence efficiency; the dust airflow can be blown to the leeward side of the seamless bluff body 51 through the second airflow channel 52, and the scaling phenomenon of the leeward side of the seamless bluff body 51 can be effectively prevented.
The flow stabilizing channel 60 is internally provided with a plurality of first flow guiding bluff bodies 61 with streamline surfaces, the top ends of the first flow guiding bluff bodies 61 are streamline curved surfaces, and the flow stabilizing channel can play a role similar to a Venturi tube (the principle of the Venturi effect is that when wind blows over an obstacle, the air pressure near a port above the leeward side of the obstacle is relatively low, so that an adsorption effect is generated and air flows, the flowing-out dust airflow has no backflow or eddy phenomenon, and the dust airflow is recovered to be in a standard flowing state in a tube.
FIG. 6 is a graph of particle size analysis of conventional dusty gas stream rectification and flow stabilizer dust emissions; fig. 7 is a particle size analysis diagram of the dust discharge of the dust-containing air flow rectification and flow stabilizer of the present invention. With reference to fig. 7 and 6, it can be clearly seen that the emission of PM2.5 can be significantly reduced after the dust-laden air flow rectifying and stabilizing device of the present invention is used.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A dust-containing airflow rectification and flow stabilization device is characterized by comprising a shell (10), and a plurality of flow stabilization channels (60) and a plurality of rectification channels (50) which are arranged in the shell (10);
a plurality of seamless blunt bodies (51) are arranged in the rectifying channel (50), a first air flow channel is arranged between the top end of each seamless blunt body (51) and the upper inner wall of the rectifying channel (50), and a second air flow channel (52) is arranged between the bottom end of each seamless blunt body and the lower inner wall of the rectifying channel (50);
the inlet of the flow stabilizing channel (60) is connected with the outlet of the rectifying channel (50), a plurality of first flow guide blunt bodies (61) are arranged in the flow stabilizing channel (60), and the surfaces of the first flow guide blunt bodies (61) are streamline curved surfaces.
2. A rectifying and flow stabilizing device for dusty gas flow according to claim 1, characterized in that a plurality of block-ups (70) are provided on the seamless bluff body (51), the seamless bluff body (51) is connected with the inner wall under the rectifying channel (50) through the block-ups (70), and a gap is preset between two adjacent block-ups (70) to form the second gas flow channel (52).
3. A dusty gas flow straightening and flow stabilizing device according to claim 1, wherein the inlet of the first gas flow channel and the inlet of the second gas flow channel (52) are both directed towards the inlet of the straightening channel (50), and the outlet of the first gas flow channel and the outlet of the second gas flow channel (52) are both directed towards the outlet of the straightening channel (50).
4. A dusty gas flow straightening and flow stabilizing device according to claim 2, characterized in that the block body of the block (70) is provided with a plurality of ventilation holes (71), the inlets of the ventilation holes (71) are towards the inlet of the straightening channel (50), and the outlets of the ventilation holes (71) are towards the outlet of the straightening channel (50).
5. A dusty gas flow rectifying and flow stabilizing device according to claim 1, characterized in that the bottom end of the first flow directing bluff body (61) is connected to the lower inner wall of the flow stabilizing channel (60), and a gap is present between the top end of the first flow directing bluff body (61) and the upper inner wall of the flow stabilizing channel (60).
6. The flow rectification and stabilization device for the dusty gas flow according to any one of claims 1 to 5, characterized in that a plurality of merging channels (40) are further arranged in the housing (10), the merging channels (40) correspond to the rectification channels (50) one by one, an outlet of the merging channel (40) is connected with an inlet of the rectification channel (50), and a plurality of turbulence blunt body blades (41) are further arranged on the inner wall of the merging channel (40);
gaps exist among the turbulence blunt body blades (41), and the turbulence blunt body blades (41) are inclined towards the outlet of the merging channel (40).
7. A rectifying and flow stabilizing device for dusty gas flow according to claim 6, characterized in that a plurality of flow guiding channels (30) are further provided in said casing (10), the outlet of said flow guiding channels (30) being connected to the inlet of said merging channel (40);
the flow guide device is characterized in that a plurality of second flow guide blunt bodies (31) are arranged in the flow guide channel (30), the bottom ends of the second flow guide blunt bodies (31) are connected with the lower inner wall of the flow guide channel (30), and gaps exist between the top ends of the second flow guide blunt bodies (31) and the upper inner wall of the flow guide channel (30).
8. A dusty gas flow rectifying and flow stabilizing device according to claim 6, characterized in that the spoiler bluff body blade (41) comprises a base (412) and a bent part (411) connected with the base (412), the base (412) is in fit connection with the inner wall of the merging channel (40), and the bent part (411) is inclined towards the outlet of the merging channel (40).
9. A dusty gas flow straightening and flow stabilizing device according to claim 7, characterized in that the cross-sectional shape of the flow guiding channel (30) and the cross-sectional shape of the merging channel (40) are both the same as the cross-sectional shape of the straightening channel (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457030.0U CN214552290U (en) | 2021-03-03 | 2021-03-03 | Dust-containing airflow rectifying and stabilizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457030.0U CN214552290U (en) | 2021-03-03 | 2021-03-03 | Dust-containing airflow rectifying and stabilizing device |
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| CN214552290U true CN214552290U (en) | 2021-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973368A (en) * | 2021-03-03 | 2021-06-18 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973368A (en) * | 2021-03-03 | 2021-06-18 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
| CN112973368B (en) * | 2021-03-03 | 2024-05-24 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
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