CN213298319U - Novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes - Google Patents
Novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes Download PDFInfo
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- CN213298319U CN213298319U CN202120768193.0U CN202120768193U CN213298319U CN 213298319 U CN213298319 U CN 213298319U CN 202120768193 U CN202120768193 U CN 202120768193U CN 213298319 U CN213298319 U CN 213298319U
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- air
- volute
- centrifugal fan
- impeller
- out pipeline
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- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 30
- 238000005192 partition Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 8
- 238000000746 purification Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a novel multifunctional shockproof double-air-inlet centrifugal fan, which comprises a volute, wherein an installation cavity is formed in the volute, a multi-wing impeller is arranged in the installation cavity, air inlets are formed on two sides of the volute, the air inlets are opposite to the multi-wing impeller, a support is arranged on the air inlets, the support is fixed on the volute through screws, a shockproof pad is clamped between the support and the volute, and the screws are arranged in the shockproof pad in a penetrating way; be formed with the air-out pipeline on the spiral case, the air-out pipeline includes inflow entrance and air exit, the inflow entrance with the installation cavity intercommunication, the air-out pipeline with the rotatory orbit of multi-wing formula impeller is tangent, the rotatory air current that produces of multi-wing formula impeller can pass through in the inflow entrance gets into the air-out pipeline, again by the air exit is discharged be provided with filter mechanism in the air-out pipeline.
Description
Technical Field
The utility model relates to a centrifugal fan technical field, more specifically the theory that says so relates to a novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy.
Centrifugal fan generally uses in the industrial field and carries out the dust absorption heat dissipation, in the air current of inhaling centrifugal fan, often contains foreign matter such as dust, grit, and these foreign matters if discharge from centrifugal fan's air exit along with the air current, then can cause the pollution to operational environment. In view of the above, in the prior art, an embedded centrifugal fan with dust filtering and collecting functions is disclosed in chinese utility model patent No. CN 201921750868.8. The upper end and the lower end of the supporting base are respectively fixed with a centrifugal fan and a dust removal purification box; the air outlet of the centrifugal fan is connected with the air inlet of the dust removal purification box through a connecting pipe, and the middle of the right side of the dust removal purification box is connected with an air outlet; a dust removal filter screen is fixed in the dust removal purification box through a fixing support, and an air outlet guide paddle is arranged on the inner side of the dust removal filter screen; the outer side of the dust removal filter screen is connected with a plurality of swinging vibration balls at equal intervals through spring rods. The dust removal filter box is coaxially driven with the centrifugal fan, so that the discharged air of the centrifugal fan is filtered and purified, and the pollution and corrosion of dust to equipment are reduced.
In the centrifugal fan in the above patent, the outer ring of the filter screen is provided with a swinging vibration ball through a spring rod, in order to increase the vibration of the filter screen, therefore, the dust on the filter screen is shaken off and is convenient to collect, but the centrifugal fan generates centrifugal wind power through the high-speed rotation of the impeller, partial wind power can be consumed by arranging the swinging vibration ball, the output wind power is reduced, the direction of the air flow generated by the centrifugal fan is tangential to the rotating track of the impeller, if the centrifugal wind force vertically acts on the spring rod, the spring rod can be transversely deformed to induce the irreversible deformation of the spring rod, when the centrifugal fan works, negative pressure is formed in the center of the impeller, the filter screen in the patent is arranged around the impeller, dust is blocked at the inner ring of the dust removal filter screen, under the action of negative pressure, dust can gather towards the center of the impeller, so that the shaft of the impeller coated with lubricating oil is blocked. In addition, the gas outlet is connected with the dust removal purification box, and the dust removal purification box can increase the internal volume of the centrifugal fan, so that the output wind power can be reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes can effectively prevent the air pollution that causes in the centrifugal fan use.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a novel multifunctional shockproof double-air-inlet centrifugal fan comprises a volute, wherein an installation cavity is formed in the volute, a multi-wing impeller is arranged in the installation cavity, air inlets are formed in two sides of the volute, the air inlets are opposite to the multi-wing impeller, a support is arranged on each air inlet and fixed on the volute through screws, a shockproof pad is clamped between each support and the volute, and the screws penetrate through the shockproof pad;
be formed with the air-out pipeline on the spiral case, the air-out pipeline includes inflow entrance and air exit, the inflow entrance with the installation cavity intercommunication, the air-out pipeline with the rotatory orbit of multi-wing formula impeller is tangent, the rotatory air current that produces of multi-wing formula impeller can pass through in the inflow entrance gets into the air-out pipeline, again by the air exit is discharged be provided with filter mechanism in the air-out pipeline.
As an improvement of the utility model, the filter mechanism includes the baffle, the baffle is connected on the inner wall of air-out pipeline and with the outflow direction of air current is parallel, the baffle can with air-out pipeline separates into wind channel and lower wind channel, the air current by go up the wind channel and discharge, highly will be less than in lower wind channel the minimum height of multi-wing formula impeller.
As a further improvement of the utility model, the filter screen is being connected to the baffle rear end, filter screen one end is connected the baffle rear portion, the other end with the top inner wall in last wind channel links to each other.
As the utility model discloses a preferred the screen panel is being fixed on the support, the screen panel presents for the grid form.
As an improvement of the utility model, the air exit with go up the wind channel intercommunication, down the wind channel with the baffle encloses into there is the dirt chamber, the rear portion in dirt chamber with the installation cavity intercommunication, the front portion in dirt chamber is sealed by the closing plate.
As a further improvement of the present invention, the sealing plate is detachably fixed below the air outlet.
Compared with the prior art, the scheme has the beneficial effects that: the air outlet pipeline is provided with a partition board, the partition board divides the air outlet pipeline into an upper air channel and a lower air channel, the upper air channel is communicated with the air outlet, the top height of the lower air channel is slightly lower than the lowest height of the rotating track of the multi-wing impeller, centrifugal force can be generated when the multi-wing impeller rotates, the weight of impurities such as dust is heavier than air, the impurities such as dust are separated from the air in the rotating process of the impeller, the impurities are gradually thrown out to the lower air channel to be recovered, air flow enters the upper air channel and then is discharged from the air outlet, and the impurities with small mass can be separated and filtered by a filter screen positioned at the upper air channel opening. In addition, the supports on the two sides of the volute and the joint of the volute are provided with the shock pads, and one support is provided with the bearing.
Drawings
FIG. 1 is a front view of the multifunctional shockproof dual-inlet centrifugal fan in the embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1 (with the partition and filter screen hidden so that internal motors, etc. can be constructed clearly);
fig. 3 is a schematic structural view of the multifunctional shockproof dual-inlet centrifugal fan and the position of the air outlet thereof in the embodiment of the present invention.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying fig. 1-3 by way of specific embodiments, which are only illustrative and not limiting of the scope of the present invention.
The embodiment discloses a novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes, including spiral case 1, the inside cavity of spiral case 1 is formed with the installation cavity, is provided with multi-wing formula impeller 2 in the installation cavity, and multi-wing formula impeller 2 has contained the blade more than three, and these impellers are all established on the impeller shaft, and the impeller shaft is driven its rotation by motor 3 to it produces centrifugal wind-force to drive the high-speed rotation of blade. In this embodiment, the motor 3 preferably adopts a brushless dc motor, and is matched with a multifunctional driving circuit to realize various functions such as speed regulation, temperature control, thermal protection, and the like, and can also realize free speed regulation in cooperation with an external control program to save energy.
Air inlets 4 are formed in two sides of the volute 1, the air inlets 4 are circular holes, the circle center of each air inlet 4 is preferably concentric with the axis of the multi-wing impeller 2, and the air inlets 4 are opposite to the multi-wing impeller 2.
The air inlet 4 is provided with a bracket 5, and the brackets 5 on both sides of the volute 1 partially protrude out of the air inlet 4 to form a double-head bracket. Support 5 includes three installation poles 6, 6 one end interconnect of three installation poles is in the central point of support 5 puts, central point at support 5 puts and is provided with bearing frame 7, the outer lane at bearing frame 7 is connected to installation pole 6, be provided with bearing 8 in bearing frame 7, bearing 8 passes through the shaft coupling and the linkage of impeller shaft, because bearing 8 is spacing by bearing frame 7 and can not take place the drunkenness at the rotation in-process, thereby can ensure that the impeller shaft also can not take place the drunkenness at high-speed rotatory in-process, the stationarity of centrifugal fan operation has been promoted.
A threaded hole is formed at the other end of the mounting rod 6, a screw 9 penetrates through the threaded hole, the mounting rod 6 and even the whole support 5 are fixed on the volute casing 1 through the screw 9, a gap is formed between the mounting rod 6 and the volute casing 1, at least one layer of vibration-proof pad 10 is filled in the gap, a through hole is formed in the vibration-proof pad 10, the through hole in the vibration-proof pad 10 is opposite to the mounting rod 6 and the threaded hole in the volute casing 1, and therefore the vibration-proof pad 10 is tightly pressed between the mounting rod 6 and the outer wall of the volute casing 1 through the screw 9. By arranging the anti-vibration pad 10, on one hand, the vibration of the volute 1 caused by the high-speed rotation of the impeller shaft, the running of the motor 3 and the striking of high-pressure air flow on the inner wall of the volute 1 can be eliminated, so that the noise and vibration reduction effects are achieved, and on the other hand, the anti-vibration pad 10 can also ensure that the filter screen 11 and the partition plate 12 which are described later are not loosened.
Specifically, an air outlet pipeline 13 is formed on the volute 1, the air outlet pipeline 13 is substantially connected with the volute 1 into a whole, the air outlet pipeline is communicated with an installation cavity inside the volute 1, the air outlet pipeline 13 comprises an inflow port and an air outlet 14, the inflow port is communicated with the installation cavity, the air outlet pipeline 13 is tangent to a rotation track of the multi-wing impeller 2, and airflow generated by rotation of the multi-wing impeller 2 can enter the air outlet pipeline 13 through the inflow port and then is discharged through the air outlet 14. A partition plate 12 is fixed on the inner wall of the air outlet pipeline 13, the partition plate 12 is parallel to the direction of the air flow entering the air outlet pipeline 13, the partition plate 12 can divide the air outlet pipeline 13 into an upper air duct 15 and a lower air duct 16, the installation height of the partition plate 12 is lower than the lowest height of the rotation track of the multi-wing impeller 2, so that the whole lower air duct 16 is positioned below the lowest height of the rotation track of the multi-wing impeller 2, the air outside the volute 1 is sucked into the installation cavity when the multi-wing impeller 2 rotates, then in the rotation process of the multi-wing impeller 2, due to the difference of centrifugal force, the air flow in the air is separated from impurities such as dust, the impurities such as dust with large mass are thrown to the lower part of the volute 1 and enter the lower air duct 16 along with partial air flow, the lower air duct 16 and the partition plate 12 enclose a dust cavity, the rear part of the dust cavity is communicated with the installation cavity through an inflow port, and the, in order to facilitate cleaning of the dust chamber after the operation is finished, the sealing plate is detachably fixed below the air outlet 14, and the detachable fixing in this embodiment may be in various conventional manners, for example, one end of the sealing plate is pivotally connected to the spiral case 1, and the other end is fastened to the partition 12.
In addition, a mesh enclosure 17 is fixed on the mounting rod 6 of the bracket 5, and the mesh enclosure 17 is in a grid shape and can primarily filter the airflow entering the mounting cavity.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. A novel multifunctional shockproof double-air-inlet centrifugal fan comprises a volute, wherein an installation cavity is formed in the volute, a multi-wing type impeller is arranged in the installation cavity, air inlets are formed in two sides of the volute and are opposite to the multi-wing type impeller,
the method is characterized in that: a bracket is arranged on the air inlet and fixed on the volute through a screw, a vibration-proof pad is clamped between the bracket and the volute, and the screw penetrates through the vibration-proof pad;
be formed with the air-out pipeline on the spiral case, the air-out pipeline includes inflow entrance and air exit, the inflow entrance with the installation cavity intercommunication, the air-out pipeline with the rotatory orbit of multi-wing formula impeller is tangent, the rotatory air current that produces of multi-wing formula impeller can pass through in the inflow entrance gets into the air-out pipeline, again by the air exit is discharged be provided with filter mechanism in the air-out pipeline.
2. The novel multifunctional shockproof double-air-inlet centrifugal fan as claimed in claim 1, which is characterized in that: the filter mechanism comprises a partition plate, the partition plate is connected to the inner wall of the air outlet pipeline and parallel to the outflow direction of the air flow, the partition plate can divide the air outlet pipeline into an upper air channel and a lower air channel, the air flow is discharged from the upper air channel, and the height of the lower air channel is lower than the lowest height of the multi-wing impeller.
3. The novel multifunctional shockproof double-air-inlet centrifugal fan as claimed in claim 2, characterized in that: the rear end of the partition board is connected with a filter screen, one end of the filter screen is connected to the rear part of the partition board, and the other end of the filter screen is connected with the inner wall of the top of the upper air duct.
4. The novel multifunctional shockproof double-air-inlet centrifugal fan as claimed in claim 1, which is characterized in that: the net cover is fixed on the bracket and is in a grid shape.
5. The novel multifunctional shockproof double-air-inlet centrifugal fan as claimed in claim 2, characterized in that: the air outlet is communicated with the upper air duct, the lower air duct and the partition plate are enclosed to form a dust cavity, the rear part of the dust cavity is communicated with the mounting cavity, and the front part of the dust cavity is sealed by the sealing plate.
6. The novel multifunctional shockproof double-air-inlet centrifugal fan as claimed in claim 5, characterized in that: the sealing plate is detachably fixed below the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768193.0U CN213298319U (en) | 2021-04-15 | 2021-04-15 | Novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768193.0U CN213298319U (en) | 2021-04-15 | 2021-04-15 | Novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213298319U true CN213298319U (en) | 2021-05-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120768193.0U Expired - Fee Related CN213298319U (en) | 2021-04-15 | 2021-04-15 | Novel multi-functional two air inlet centrifugal fan that take precautions against earthquakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213298319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404715A (en) * | 2021-08-17 | 2021-09-17 | 南通市吉腾鼓风机有限公司 | Air blower for air conditioning |
| CN114278595A (en) * | 2021-12-27 | 2022-04-05 | 厦门理工学院 | Supercharger for wind tunnel laboratory |
-
2021
- 2021-04-15 CN CN202120768193.0U patent/CN213298319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404715A (en) * | 2021-08-17 | 2021-09-17 | 南通市吉腾鼓风机有限公司 | Air blower for air conditioning |
| CN114278595A (en) * | 2021-12-27 | 2022-04-05 | 厦门理工学院 | Supercharger for wind tunnel laboratory |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |