CN109763919B - Centrifugal dust remover and internal combustion engine comprising same - Google Patents
Centrifugal dust remover and internal combustion engine comprising same Download PDFInfo
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- CN109763919B CN109763919B CN201910159475.8A CN201910159475A CN109763919B CN 109763919 B CN109763919 B CN 109763919B CN 201910159475 A CN201910159475 A CN 201910159475A CN 109763919 B CN109763919 B CN 109763919B
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- 239000000428 dust Substances 0.000 title claims abstract description 106
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 52
- 230000005686 electrostatic field Effects 0.000 claims abstract description 44
- 238000002955 isolation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention provides a centrifugal dust remover and an internal combustion engine comprising the same, wherein the centrifugal dust remover comprises a shell, the shell comprises an air inlet channel, a middle channel and an air outlet channel, the air inlet channel and the air outlet channel are respectively communicated with two ends of the middle channel, and the structure of the middle channel is an arc-shaped channel structure; the air inlet channel is provided with a cathode grid, the cathode grid is provided with a through hole for the air flow to pass through, and the cathode grid is connected with the cathode of the power supply so that dust particles in the air flow are endowed with negative charges; the outer side wall of the middle channel is provided with an opening at one end corresponding to the air outlet channel, a first electrostatic field polar plate is arranged at the opening position and connected with an anode of a power supply to capture negatively charged dust particles in air flow and unload the negatively charged dust particles, and a dust collecting box hermetically connected with a shell is arranged at the lower part of the first electrostatic field polar plate to ensure the cleanness of the air entering the internal combustion engine, prolong the service life of the internal combustion engine and reduce the maintenance frequency of the internal combustion engine.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to a centrifugal dust remover and an internal combustion engine comprising the centrifugal dust remover.
Background
The dust remover filters dust in air flow entering the internal combustion engine, so that abrasion to the internal combustion engine is reduced, and further maintenance to the internal combustion engine is reduced.
The traditional mechanical air filter has quite unsatisfactory filtering effect on tiny particles in the atmosphere, and the filtered air still contains dust with the diameter of less than 50um, so that various transportation tools such as diesel locomotives, heavy trucks and the like which take the internal combustion engine as power are extremely severely worn, the maintenance period of the production machinery is greatly shortened, and the normal attendance rate is seriously influenced.
It is a major problem addressed by those skilled in the art to investigate how to remove less than 50um of dust from the air stream entering the engine, reduce wear on the cylinders, and reduce maintenance cycles of the engine.
Disclosure of Invention
The invention aims to provide a centrifugal dust remover and an internal combustion engine comprising the same, so as to solve the problems that tiny dust particles in air flow entering the internal combustion engine cannot be removed, abrasion of the internal combustion engine is accelerated, service life of the internal combustion engine is shortened, and maintenance frequency of the internal combustion engine is increased in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a centrifugal dust remover, comprising:
the shell comprises an air inlet channel, a middle channel and an air outlet channel, wherein the air inlet channel and the air outlet channel are respectively communicated with two ends of the middle channel, and the structure of the middle channel is an arc-shaped channel structure;
The cathode grid is arranged in the air inlet channel and provided with a through hole for the air flow to pass through, and is connected with the cathode of the power supply so that dust particles in the air flow are endowed with negative charges;
The dust collecting box is characterized in that an opening is formed in one end, corresponding to the air outlet channel, of the outer side wall of the middle channel, a first electrostatic field polar plate is arranged at the position of the opening, the first electrostatic field polar plate is connected with an anode of a power supply to capture negatively charged dust particles in air flow and unload the negatively charged dust particles, and a dust collecting box connected with the shell in a sealing mode is arranged at the lower portion of the first electrostatic field polar plate.
Preferably, a second electrostatic field polar plate is arranged on the outer side of one side, far away from the arc center, of the middle channel.
Preferably, the cross-sectional area of the intermediate passage is smaller than the cross-sectional area of the intake passage.
Preferably, the top end of the first electrostatic field polar plate is provided with a turbulence preventing isolation plate.
Preferably, the through holes of the cathode grids are arranged in a bent structure.
Preferably, an insulating layer is arranged between the second electrostatic field polar plate and the outer side of the middle channel.
Preferably, the air inlet channel and the middle channel are connected through arc transition.
Preferably, the cross-sectional area of the outlet channel is greater than the cross-sectional area of the intermediate channel.
Preferably, the first electrostatic field polar plate and the cathode grid are fixed on the shell through insulating supporting blocks.
The invention also provides an internal combustion engine, which comprises a centrifugal dust remover, wherein the centrifugal dust remover is the centrifugal dust remover.
The invention provides a centrifugal dust remover and an internal combustion engine comprising the same, wherein the centrifugal dust remover comprises a shell, the shell comprises an air inlet channel, a middle channel and an air outlet channel, the air inlet channel and the air outlet channel are respectively communicated with two ends of the middle channel, the structure of the middle channel is an arc-shaped channel structure, dust of larger particles in air is filtered after air flow is filtered by an original air filter, the air inlet channel of the shell is communicated with an outlet of the original air filter, the air flow enters from the air inlet channel of the shell and enters the internal combustion engine from the air outlet channel of the shell, and the structure of the middle channel is an arc-shaped channel structure, so that dust particles with negative charges move to one side deviating from the circle center.
And the cathode grid is provided with a through hole for the air flow to pass through, and is connected with the cathode of the power supply so that dust particles in the air flow are endowed with negative charges, the air flow passes through the cathode grid at the speed of v, and the dust particles in the air flow are endowed with negative charges.
The outer side wall of the middle channel is a side wall relatively far away from the circle center, a first electrostatic field polar plate is arranged at the opening position and connected with an anode of a power supply to capture negatively charged dust particles in air flow and unload the negative charge of the dust particles, a dust collecting box which is hermetically connected with a shell is arranged at the lower part of the first electrostatic field polar plate, the negatively charged dust particles are further accelerated under the attraction of an electrostatic field and separated from the air flow to enter a dust collecting area until the negatively charged dust particles collide with the first electrostatic field polar plate, the originally negatively charged dust particles lose charge at the moment of contacting the first electrostatic field polar plate, the dust particles are gradually accumulated, and the neutralized dust particles fall into the dust collecting box under the action of gravity.
The centrifugal dust remover filters dust particles, ensures the cleanliness of gas entering the internal combustion engine, prolongs the service life of the internal combustion engine and reduces the maintenance frequency of the internal combustion engine.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram illustrating a construction of a centrifugal dust collector according to an exemplary embodiment;
In the figure: the dust collector comprises a 1-shell, a 2-cathode grid, a 3-insulating supporting block, a 4-middle channel, a 5-insulating layer, a 6-second electrostatic field polar plate, a 7-first electrostatic field polar plate, an 8-dust collecting box and a 9-turbulence-preventing isolation plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The embodiment provides a centrifugal dust remover and an internal combustion engine comprising the same, so as to solve the problems that tiny dust particles in air flow entering the internal combustion engine cannot be removed, abrasion of the internal combustion engine is quickened, service life of the internal combustion engine is shortened, and maintenance frequency of the internal combustion engine is increased in the prior art.
Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the invention described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the invention described in the claims.
Referring to fig. 1, the present invention provides a centrifugal dust collector including:
The shell 1, the shell 1 includes air inlet channel, intermediate channel 4, the passageway of giving vent to anger, air inlet channel, the passageway of giving vent to anger is linked together with the both ends of intermediate channel 4 respectively, intermediate channel 4's structure sets up to arc channel structure, after the air current was filtered by original air cleaner, the dust of great granule in the air has been filtered, the air inlet channel of shell 1 communicates the export of original air cleaner, the air current gets into from the air inlet channel of shell 1, and the passageway of giving vent to anger from shell 1 enters into the internal-combustion engine inside, intermediate channel 4's structure sets up to arc channel structure, make negatively charged dust granule to the one side motion of deviating from the centre of a circle.
And a cathode grid 2 arranged in the air inlet channel, wherein the cathode grid 2 is provided with a through hole for the air flow to pass through, and the cathode grid 2 is connected with the cathode of the power supply so that dust particles in the air flow are endowed with negative charges, the air flow passes through the cathode grid 2 at the speed of v1, and the dust particles in the air flow are endowed with negative charges.
The outer side wall of the middle channel 4 is a side wall relatively far away from the circle center, a first electrostatic field polar plate 7 is arranged at the opening position, the first electrostatic field polar plate 7 is connected with an anode of a power supply to capture negatively charged dust particles in air flow and unload the negative charge of the dust particles, a dust collection box 8 hermetically connected with the shell 1 is arranged at the lower part of the first electrostatic field polar plate 7, the negatively charged dust particles are further accelerated under the attraction of an electrostatic field and separated from the air flow into a dust collection area until the negatively charged dust particles collide with the first electrostatic field polar plate 7, the originally negatively charged dust particles lose charge at the moment of contacting the first electrostatic field polar plate 7, the dust particles gradually accumulate, and the neutralized dust particles fall into the dust collection box 8 under the action of gravity.
The centrifugal dust remover filters dust particles, ensures the cleanliness of gas entering the internal combustion engine, prolongs the service life of the internal combustion engine and reduces the maintenance frequency of the internal combustion engine.
In this embodiment, the outer side of the middle channel 4 away from the arc center is provided with the second electrostatic field polar plate 6, and the voltage intensity of the second electrostatic field polar plate 6 is lower than that of the first electrostatic field polar plate 7, the second electrostatic field polar plate 6 is positively charged, and the second electrostatic field polar plate 6 attracts the negatively charged dust particles to move to the side of the middle channel 4 away from the arc center, so that the dust particles are separated from the air flow, and the air flow entering the internal combustion engine is clean.
In this embodiment, the cross-sectional area of the middle channel 4 is smaller than that of the air inlet channel, so that the air flow enters the housing 1 at a speed v 1, enters the middle channel 4 at a speed v 2, and the speed v 2 is greater than the speed v 1, so that the speed of dust particles is increased, the dust particles move to the side, away from the arc center, of the middle channel 4, and the dust particles in the air flow are separated from the air flow.
In this embodiment, the top end of the first electrostatic field polar plate 7 is provided with a turbulence preventing isolation plate 9, and the turbulence preventing isolation plate 9 extends towards the middle channel 4 to prevent dust particles losing negative charges from forming turbulence and being brought into the internal combustion engine by airflow.
In this embodiment, the through hole of the cathode grid 2 is set to be of a bent structure, the cathode grid 2 with the through hole of the bent structure has strong capability of giving negative charges to dust particles, the density of the through hole of the bent structure is high, the dust particles can be guaranteed to be given enough negative charges when passing through the cathode grid 2, the dust particles can be guaranteed to be attracted when passing through the middle channel 4, and meanwhile the dust particles are guaranteed to be attracted by the first electrostatic field polar plate 7, so that the dust particles are separated from air flow, clean air flow is guaranteed to enter the internal combustion engine, the service life of the internal combustion engine is prolonged, and the maintenance frequency of the internal combustion engine is reduced.
In this embodiment, an insulating layer 5 is disposed between the second electrostatic field polar plate 6 and the middle channel 4, so as to avoid the charge on the casing 1, ensure the safety of the device during operation, and avoid accidents.
In this embodiment, the air inlet channel is in arc transitional connection with the middle channel 4, so that the speed of the air flow from the air inlet channel to the middle channel 4 is gradually changed, and the damage to the shell 1 is avoided.
In this embodiment, the cross-sectional area of the air outlet channel is larger than that of the middle channel 4, so that the air flow is changed to v 3 at the speed v 2, the air flow entering the internal combustion engine is stable, and the service life of the internal combustion engine is prolonged.
In this embodiment, the first electrostatic field polar plate 7 and the cathode grid 2 are fixed on the inner wall of the shell 1 through the insulating support block 3, so that charges on the shell 1 are avoided, the safety of the equipment in operation is ensured, and accidents are avoided.
The invention also provides an internal combustion engine, which comprises a centrifugal dust remover, wherein the centrifugal dust remover is the centrifugal dust remover in the embodiment, dust particles in air flow are separated from the air flow by the centrifugal dust remover, so that the cleanliness of air entering the internal combustion engine is ensured, the service life of the internal combustion engine is prolonged, and the maintenance frequency of the internal combustion engine is reduced. The development of the beneficial effects is generally similar to that brought by a centrifugal dust collector, and therefore will not be described in detail herein.
It should be noted that the terms "first," "second," and the like herein are not limited to a specific order, but merely serve to distinguish between components or functions.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. A centrifugal dust collector, comprising:
The device comprises a shell (1), wherein the shell (1) comprises an air inlet channel, an intermediate channel (4) and an air outlet channel, the air inlet channel and the air outlet channel are respectively communicated with two ends of the intermediate channel (4), and the structure of the intermediate channel (4) is an arc-shaped channel structure;
A cathode grid (2) arranged in the air inlet channel, wherein the cathode grid (2) is provided with a through hole for air flow to pass through, and the cathode grid (2) is connected with a cathode of a power supply so that dust particles in the air flow are endowed with negative charges;
An opening is formed in one end, corresponding to the air outlet channel, of the outer side wall of the middle channel (4), a first electrostatic field polar plate (7) is arranged at the opening position, the first electrostatic field polar plate (7) faces the incoming flow direction of dust, the first electrostatic field polar plate (7) is connected with an anode of a power supply to capture negatively charged dust particles in the air flow and unload the negative charges of the dust particles, a dust collection box (8) hermetically connected with the shell (1) is arranged at the lower part of the first electrostatic field polar plate (7), the negatively charged dust particles are further accelerated under the attraction effect of an electrostatic field generated by the first electrostatic field polar plate (7) and are separated from the air flow into the dust collection box (8) until the dust particles collide with the first electrostatic field polar plate (7), the originally negatively charged dust particles lose charges at the moment of touching the first electrostatic field polar plate (7), the negatively charged dust particles are gradually accumulated, and the neutralized dust particles fall into the dust collection box (8) under the action of gravity;
a second electrostatic field polar plate (6) is arranged on the outer side of one side, far away from the arc center, of the middle channel (4), and the second electrostatic field polar plate (6) is positively charged;
The top end of the first electrostatic field polar plate (7) is provided with a turbulence preventing isolation plate (9), the turbulence preventing isolation plate (9) extends towards the middle channel (4) to prevent dust particles losing negative charges from forming turbulence and being brought into the internal combustion engine by airflow.
2. Centrifugal dust separator according to claim 1, wherein the cross-sectional area of the intermediate channel (4) is smaller than the cross-sectional area of the inlet channel.
3. Centrifugal dust collector according to claim 1, characterized in that the through holes of the cathode grid (2) are provided in a bent structure.
4. Centrifugal dust collector according to claim 1, characterized in that an insulating layer (5) is arranged between the second electrostatic field plate (6) and the intermediate channel (4).
5. Centrifugal dust collector according to claim 1, characterized in that the inlet channel is connected with the intermediate channel (4) by means of an arc-shaped transition.
6. Centrifugal dust separator according to claim 1, wherein the cross-sectional area of the outlet channel is larger than the cross-sectional area of the intermediate channel (4).
7. Centrifugal dust collector according to claim 1, characterized in that the first electrostatic field plate (7), the cathode grid (2) are fixed to the housing (1) by means of insulating support blocks (3).
8. An internal combustion engine comprising a centrifugal dust separator, wherein the centrifugal dust separator is the centrifugal dust separator according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159475.8A CN109763919B (en) | 2019-03-01 | 2019-03-01 | Centrifugal dust remover and internal combustion engine comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159475.8A CN109763919B (en) | 2019-03-01 | 2019-03-01 | Centrifugal dust remover and internal combustion engine comprising same |
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| Publication Number | Publication Date |
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| CN109763919A CN109763919A (en) | 2019-05-17 |
| CN109763919B true CN109763919B (en) | 2024-04-26 |
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| CN113663746B (en) * | 2021-06-24 | 2022-11-04 | 国科温州研究院(温州生物材料与工程研究所) | Multistage continuous high-flux high-efficiency symmetrical arc inertia micro-fluidic chip |
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| EP0144521A2 (en) * | 1980-10-20 | 1985-06-19 | Maxwell Laboratories, Inc. | Electrostatic precipitator apparatus having an improved ion generating means |
| JP2003326121A (en) * | 2002-05-08 | 2003-11-18 | Mitsubishi Electric Corp | Air cleaning filter and air conditioner using the same |
| CN201596439U (en) * | 2010-01-15 | 2010-10-06 | 合肥水泥研究设计院 | Electric-bag combined type dust collector |
| CN103195543A (en) * | 2013-04-01 | 2013-07-10 | 陈牧锋 | Tail gas dust-removing exhaust pipe of locomotive |
| CN206222955U (en) * | 2016-11-30 | 2017-06-06 | 安徽工业大学 | A kind of selective emission-reducing system of Ore Sintering Process flue gas PM10/2.5 |
| CN108067354A (en) * | 2017-08-10 | 2018-05-25 | 莱芜万通电器有限公司 | A kind of composite type electrostatic precipitator |
| CN209557126U (en) * | 2019-03-01 | 2019-10-29 | 北京泛华万联机电集成技术有限责任公司 | Centrifugal deduster and internal combustion engine including the centrifugal deduster |
-
2019
- 2019-03-01 CN CN201910159475.8A patent/CN109763919B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0144521A2 (en) * | 1980-10-20 | 1985-06-19 | Maxwell Laboratories, Inc. | Electrostatic precipitator apparatus having an improved ion generating means |
| JP2003326121A (en) * | 2002-05-08 | 2003-11-18 | Mitsubishi Electric Corp | Air cleaning filter and air conditioner using the same |
| CN201596439U (en) * | 2010-01-15 | 2010-10-06 | 合肥水泥研究设计院 | Electric-bag combined type dust collector |
| CN103195543A (en) * | 2013-04-01 | 2013-07-10 | 陈牧锋 | Tail gas dust-removing exhaust pipe of locomotive |
| CN206222955U (en) * | 2016-11-30 | 2017-06-06 | 安徽工业大学 | A kind of selective emission-reducing system of Ore Sintering Process flue gas PM10/2.5 |
| CN108067354A (en) * | 2017-08-10 | 2018-05-25 | 莱芜万通电器有限公司 | A kind of composite type electrostatic precipitator |
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