KR102472601B1 - DPF device for generators with improved particulate matter reduction performance - Google Patents

Abstract

The present invention relates to a DPF device for a generator with improved processing performance of particulate materials to process particulate materials, such as fine dust, generated from an engine driving the generator. The DPF device for a generator with improved processing performance of particulate materials according to an embodiment of the present invention, which includes: a particulate filter having a plurality of filter channels formed therethrough to remove particulate materials; and a filter housing accommodating the particulate filter and having an inlet formed at one side to introduce exhaust gas and an outlet formed at the other side to discharge exhaust gas, comprises: a first screen, which is located on one side of the particulate filter, having a first communication hole, which communicates with some of the plurality of filter channels, and closing some of the rest; a second screen located on the other side of the particulate filter, having a shape opposed to the first screen, and having a second communication hole, which closes the filter channel opened by the first communication hole and opens the filter channel closed by the first screen; and a screen driving part driving the first screen and the second screen so that the first screen and the second screen open and close the filter channels to be opposed. Therefore, the present invention can improve processing performance of particulate materials.

Description

DPF device for generators with improved particulate matter reduction performance}

[0001] The present invention relates to a DPF device for a power generator with improved particulate matter treatment performance for treating particulate matter such as fine dust generated from an engine driving a generator.

In general, a generator uses renewable energy such as solar and wind, or generates power by a power means such as an engine.

In the case of a generator using renewable energy, since the generation efficiency is not higher than that of a generator using a power means, a generator used in an emergency is usually generated by a power means such as an engine.

A generator using an engine has high power generation efficiency, but since environmental pollution occurs due to exhaust gas generated while burning fuel, a post-processing facility is installed to prevent environmental pollution.

As a post-treatment facility for post-processing exhaust gas, Korean Patent Laid-Open Publication No. 10-2022-0075000 (published on June 7, 2022) "a diesel particulate filter device including a complex catalyst layer" has been disclosed.

The above-mentioned diesel particulate filter device includes a plurality of inlet channels, one end of which is opened, through which exhaust gas discharged from a diesel power generation facility is introduced, and the other end of which is plugged, and which extends in a longitudinal direction; a plurality of discharge channels formed adjacent to the inflow channel, one end plugged and the other end open to discharge the processed gas from which harmful components including particulate matter and nitrogen oxides are removed from the exhaust gas, and extending in a longitudinal direction; and a porous wall defining a boundary between the inlet channel and the outlet channel, extending in a longitudinal direction, and fluidly communicating the inlet channel and the outlet channel, wherein a first catalyst layer is formed on an inner wall surface of the inlet channel. A second catalyst layer is formed on the surface of the inner wall of the discharge channel and a first catalyst layer is formed on the surface of the second catalyst layer, the coating amount of the first catalyst layer increases from one end to the other end of the inner wall of the discharge channel, and the second catalyst layer The amount of silver coating is configured to decrease.

A conventional diesel particulate filter having such a configuration can prevent environmental pollution by filtering out particulate matter while exhaust gas passes through a plurality of discharge channels.

However, since the conventional diesel particulate filter is configured in a mosaic form in which one end of the exhaust channel is open and the other end is closed, the exhaust channel for filtering out foreign matter cannot be changed, so the removal performance of foreign matter is reduced, and frequent regeneration is required. By doing this, there is a problem in that the diesel particulate filter is easily damaged due to deterioration and the lifespan is shortened.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to change the position of the filter channel flowing into the particulate filter by installing a first screen and a second screen in the particulate filter. By changing the location where substances are accumulated, not only the treatment performance of the particulate matter can be improved, but also the lifespan of the particulate filter can be improved by preventing the particulate filter from being deteriorated and damaged by minimizing the regeneration of the particulate filter. It is an object of the present invention to provide a DPF device for generators with improved processing performance.

In addition, when regenerating the particulate filter, since the first screen and the second screen open and regenerate the filter channel of the particulate filter, a DPF device for generators with improved treatment performance of particulate matter capable of effectively treating and regenerating particulate matter is provided. aims to do

In addition, when the exhaust gas is regenerated or the location of the filter channel is changed, the exhaust gas passes through the bypass passage and collects particulate matter and residues remaining after incineration during regeneration through the collection filter installed in the bypass passage, thereby preventing environmental pollution. It is an object of the present invention to provide a DPF device for a power generator with improved treatment performance of particulate matter.

In addition, another object of the present invention is to provide a DPF device for generators with improved particulate matter treatment performance in which a collection filter is detachably installed in a bypass passage to easily treat foreign substances collected in the collection filter.

In order to achieve the above object, a DPF device for a power generator having improved particulate matter treatment performance according to an embodiment of the present invention includes a particulate filter through which a plurality of filter channels are formed to remove particulate matter, and the particulate filter is accommodated, In the DPF device for a power generator with improved treatment performance of particulate matter, including a filter housing having an inlet through which exhaust gas is introduced on one side and an exhaust port through which exhaust gas is discharged on the other side, the DPF device is located on one side of the particulate filter and the plurality of A first screen that communicates with some of the filter channels of the filter channels is formed and the remaining part is closed, and is located on the other side of the particulate filter and is formed by the first communication hole in a form opposite to the first screen. The opened filter channel is closed, and the filter channel closed by the first screen is opened and closed by a second screen formed with a second communication hole, and the first screen and the second screen open and close the filter channel in opposite directions. and a screen driver for driving the first screen and the second screen.

The screen driving unit rotatably couples the first screen and the second screen so that the first screen and the second screen overlap on both ends of the particulate filter or are spaced apart from the particulate filter to open the filter channel. A screen hinge may be included.

The screen driving unit seesaws the first screen and the second screen to open and close the filter channel so that they are opposite to each other, the first screen is coupled to one end and the second screen is coupled to the other end, and one end and the other end It may include a screen driving table rotatably coupling the center portion to seesaw movement.

The filter housing may include a bypass passage through which particulate matter dropped from the particulate filter when regenerating the particulate filter bypasses at a location where an exhaust port of the filter housing is formed.

The bypass passage may include a collection filter installed in the bypass passage to filter particulate matter passing through the bypass passage.

and a selection door that selectively opens and closes the bypass passage or the exhaust port so that the exhaust gas passing through the particulate filter is exhausted to the bypass passage or the exhaust port.

According to the present invention, a first screen and a second screen are installed on both sides of a particulate filter to selectively pass filter channels through which exhaust gas passes, so that all filter channels are used to filter particulate matter without unused filter channels. By doing so, it is possible not only to improve the treatment performance of particulate matter, but also to minimize the regeneration of the particulate filter by using all the filter channels of the particulate filter to treat particulate matter, thereby improving the durability of the particulate filter due to deterioration and damage. have.

In addition, when the particulate filter is regenerated, since the first screen and the second screen are separated from each other by the separation drive unit, both particulate filters are opened to process the particulate matter, so that the regeneration effect of the particulate filter can be improved.

In addition, when regenerating the particulate filter or changing the filter channel, particulate matter or residual matter remaining after incineration during regeneration flows into the collection filter of the bypass passage, preventing the particulate matter or residual matter from being discharged to the outside, causing environmental pollution. can prevent doing so.

1 is a side cross-sectional view showing a DPF device for a power generator with improved treatment performance of particulate matter according to an embodiment of the present invention.
2 is a perspective view illustrating a first screen, a second screen, and a particulate filter constituting a DPF device for a generator having improved particulate matter treatment performance according to an embodiment of the present invention.
3 is a front view of a first screen, a second screen, and a particulate filter constituting a DPF device for a generator having improved particulate matter treatment performance according to an embodiment of the present invention, as viewed from the front.
4 shows the operating state of the first screen and the second screen by the screen driving unit constituting the DPF device for a power generator with improved particulate matter treatment performance according to an embodiment of the present invention.
5 is a cross-sectional side view showing a DPF device for a generator having improved particulate matter treatment performance according to an embodiment of the present invention, showing an operating state during regeneration of the particulate filter.
FIG. 6 shows the operation of the spaced driving unit of the screen driving unit constituting the DPF device for generator having improved particulate matter processing performance according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

The DPF device 100 for a power generator with improved particulate matter processing performance according to an embodiment of the present invention can filter out particulate matter such as fine dust included in exhaust gas generated from an engine driving a generator.

The generator in the present invention may be any one of an emergency generator, a diesel generator, a biogas generator, and a gas turbine generator.

As shown in FIG. 1 , the DPF device 100 for a generator having improved treatment performance of particulate matter according to an embodiment of the present invention may include a filter housing 110 .

The filter housing 110 may accommodate a particulate filter 120 to be described below, and the filter housing 110 may guide a moving path of exhaust gas passing through the particulate filter 120 .

The filter housing 110 may be formed in a box shape having a rectangular cross section, and an inlet 111 through which exhaust gas from a generator flows is formed at one end of the filter housing 110 and the other end of the filter housing 110. An exhaust port 113 for exhausting the exhaust gas flowing into the inlet 111 may be formed.

As shown in FIGS. 1 and 2 , the DPF device 100 for a generator having improved treatment performance of particulate matter according to an embodiment of the present invention may include a particulate filter 120 .

The particulate filter 120 may be installed inside the filter housing 110 to filter out particulate matter included in the exhaust gas flowing into the inlet 111 of the filter housing 110 and exhaust the exhaust gas through the exhaust port 113 .

The particulate filter 120 may be formed in a square shape with a cross section corresponding to the cross section of the filter housing 110, and the particulate filter 120 faces the exhaust port 113 at a portion facing the inlet 111. A plurality of filter channels 121 having a penetrating shape may be formed.

The filter channels 121 may be formed by being arranged in a lattice shape in the particulate filter 120, and the exhaust gas flowing into the filter channels 121 moves to the adjacent filter channels 121 while passing through the introduced filter channels 121. It may be formed of a porous material so that particulate matter is filtered out.

The particulate filter 120 may include, for example, any one of ceramic, copper or zeolite, or platinum, or may be formed of a mixture of vanadium or titanium.

As shown in FIGS. 1 to 3 , the DPF device 100 for a power generator with improved treatment performance of particulate matter according to an embodiment of the present invention may include a first screen 130 and a second screen 140. can

The first screen 130 and the second screen 140 may selectively open and close the filter channel 121 to be opposite to each other.

The first screen 130 and the second screen 140 may be formed in the form of a rectangular plate formed in a size larger vertically than the shape of the cross section of the particulate filter 120, and the first screen 130 is The second screen 140 may overlap with one side of the particulate filter 120 and be positioned with the second screen 140 overlapping with the other side of the particulate filter 120 .

The first screen 130 may be formed through first communication holes 131 communicating with some of the filter channels 121 among the plurality of filter channels 121, and the first communication holes 131 are arranged The plurality of filter channels 121 may be formed to open like a mosaic.

In this case, the portion of the first screen 130 in which the first communication hole 131 is not formed may seal the remaining filter channels 121 among the opened filter channels 121 .

The second screen 140 may be formed with second communication holes 141 communicating with some of the filter channels 121 of the plurality of filter channels 121, and the second communication holes 141 are arranged The plurality of filter channels 121 may be formed to open like a mosaic.

In this case, the portion of the second screen 140 in which the second communication hole 141 is not formed may seal the remaining filter channels 121 among some of the opened filter channels 121 .

For example, in a state where the first screen 130 and the second screen 140 are located on both sides of the particulate filter 120, one end of the filter channel 121 with reference to any one filter channel 121 is the first screen 130 and the second screen 140. When communicating with the first communication hole 131 of the screen 130, the other end of the filter channel 121 is sealed by the second screen 140, and one end of the adjacent filter channel 121 is connected to the first screen 130. When sealed by the filter channel 121, the other end of the second screen 140 may be located opposite to each other so as to communicate with the second communication hole 141.

On the other hand, the first screen 130 and the second screen 140 are installed to be slidable up and down so as to slide up and down in the filter housing 110 so that they are opposite to each other, and either one is installed as a filter channel by the first communication hole 131 When opening 121, the other can be positioned to close the filter channel 121.

For example, in a state in which the first communication hole 131 formed in the first screen 130 opens any one filter channel 121 and the second screen 140 closes the same filter channel 121 When the first screen 130 is slid upward and the second screen 140 is slid downward, the first communication hole 131 formed in the first screen 130 is formed in any one filter channel 121 is closed, and the second communication hole 141 formed in the second screen 140 can slide to open the same filter channel 121 .

That is, since the first communication hole 131 and the second communication hole 141 are formed in a mosaic form in the first screen 130 and the second screen 140, the plurality of filter channels 121 have one end of the first screen When open in line with the first communication hole 131 of 130, it is closed by the second screen 140, and when closed by the first screen 130, the second communication hole of the second screen 140 It can be opened in communication with (141).

Of course, if the first communication hole 131 and the second communication hole 141 are arranged so that only one column is vertically shifted in a state where the first screen 130 and the second screen 140 are located on the same line, the filter channel ( 121) to be opened and closed to be opposite to each other.

The first screen 130 and the second screen 140 configured as described above allow exhaust gas to flow into the filter channel 121 communicating with the first communication hole 131 of the first screen 130, and in the opposite direction to the second screen 130. Since it is sealed by the screen 140, the exhaust gas flowing into the filter channel 121 passes through the pores of the particulate filter 120, and the particulate matter is filtered and moves to the adjacent filter channel 121, and the adjacent filter channel 121 ) Conversely, since it is sealed by the first screen 130 and moves in communication with the second communication hole 141 of the second screen 140, exhaust from the particulate filter 120 through the adjacent filter channel 121 It can filter out particulate matter in the form.

On the other hand, since particulate matter passes through the filter channel 121 sealed by the first screen 130 in a filtered state, particulate matter does not accumulate in the filter channel 121, so that the first screen 130 and the second screen ( When the filter channel 121 is opened and closed in opposition by the sliding movement of the 140), the exhaust gas moves through the filter channel 121 that was not used, that is, the filter channel 121 in which the particulate matter is not filtered, and filters the particulate matter. As a result, it is possible to prevent deterioration in post-treatment performance of the exhaust gas due to clogging of particulate matter.

As shown in FIGS. 1 and 4 , the DPF device 100 for a generator having improved treatment performance of particulate matter according to an embodiment of the present invention may include a screen driver 150 .

The screen driver 150 may drive the first screen 130 and the second screen 140 so that the first screen 130 and the second screen 140 selectively open and close the filter channel 121 .

When the first communication hole 131 of the first screen 130 communicates with any one filter channel 121, the screen driving unit 150 passes the one filter channel 121 to the second screen 140. and when the first screen 130 closes any one filter channel 121, the first communication hole 131 of the second screen 140 seals any one filter channel 121. The first screen 130 and the second screen 140 may be driven up and down to be opposite to each other.

The screen driving unit 150 can drive the first screen 130 and the second screen 140 so that the first screen 130 and the second screen 140 move up and down in opposition to each other through a seesaw motion, and the screen driving unit 150 may include a screen drive unit 151.

In the screen driving unit 151, the first screen 130 is coupled to one end and the second screen 140 is coupled to the other end, and the center of the screen driving unit 151 is connected to the filter housing 110 by the hinge pin 155 rotatably coupled by the seesaw so that the first screen 130 and the second screen 140 move up and down opposite to each other in the form of a seesaw movement at both ends of the screen drive unit 151 centering on the hinge pin 155 can make it

The screen driving unit 151 can slide the first screen 130 and the second screen 140 up and down so as to be opposite to each other while rotating around the hinge pin 155 by a driving motor.

As shown in FIGS. 5 and 6 , the screen driving unit 150 may further include a separation driving unit 160 .

The separation driver 160 brings the first screen 130 and the second screen 140 into close contact with both ends of the particulate filter 120 so that one opens the filter channel 121 and the other opens the filter channel 121. Either the particulate filter 120 is separated from the first screen 130 and the second screen 140 so that both ends of the filter channel 121 are completely open at the first screen 130 and the second screen 140. can

At this time, the end portions of the same circumference of the first screen 130 and the second screen 140 are rotatably coupled to the screen driving unit 151 by the screen hinge unit 153, and the screen hinge unit 153 controls the motion. While the first screen 130 and the second screen 140 rotate, they may be spaced apart from both ends of the particulate filter 120 or may overlap both ends of the particulate filter 120 .

Here, when the first screen 130 and the second screen 140 are rotated by the screen hinge part 153 and overlap the particulate filter 120, the particulate filter 120 performs a filtering function of filtering out particulate matter. When the first screen 130 and the second screen 140 are rotated by the screen hinge 153 to open both ends of the particulate filter 120, both ends of the particulate filter 120 are opened while , particulate matter caught in the filter channel 121 may be discharged to the outside.

The spaced driving unit 160 may include a first connection unit 161 , a second connection unit 163 and a driving cam 165 .

One end of the first connecting rod 161 is connected to the first screen 130, the other end of the first connecting rod 161 is formed with a pressing portion 161a pressed against the drive cam 165, and the second connecting rod 163 ) has one end connected to the second screen 140, and a pressing portion 163a pressed against the drive cam 165 may be formed at the other end of the second connecting rod 163.

Also, the pressing parts 161a and 163a of the first connecting rod 161 and the second connecting rod 163 may be accommodated to face each other inside the spaced drive housing 169, and the pressing parts of the first connecting rod 161 Between 161a and the spaced drive housing 169 and between the pressing part 163a of the second connecting rod 163 and the spaced driving housing 169, the pressing part 161a of the first connecting rod 161 and the second connecting rod 161 The pressing portion 163a of the second connecting rod 163 may be supported by the elastic force of the support spring 167 in a direction facing each other.

Driving cams 165 protruding on both sides from the center are installed in the pressing portion 161a of the first connecting rod 161 and the pressing portion 163a of the second connecting rod 163, thereby controlling the rotation of the driving cam 165. Accordingly, when the pressing parts 161a and 163a of the first connecting rod 161 and the second connecting rod 163 are pressurized and separated from each other, or when the pressing parts 161a and 163a are released as the driving cam 165 rotates, , The pressing parts 161a and 163a of the first connecting rod 161 and the second connecting rod 163 are positioned so as to be close to each other by the elastic force of the support spring 167 .

As such, while the first connecting rod 161 and the second connecting rod 163 are pressurized and released by the driving cam 165, the first screen 130 connected to the first connecting rod 161 and the second connecting rod 163 ) and the second screen 140 may be rotated through the screen hinge part 153 to come into close contact with the particulate filter 120 or may be spaced apart from the particulate filter 120 .

As shown in FIGS. 1 and 5 , the DPF device 100 for a power generator with improved treatment performance of particulate matter according to an embodiment of the present invention may include a bypass passage 115 .

The bypass passage 115 may be formed in the filter housing 110 , and the bypass passage 115 may be formed in the filter housing 110 at a position where the exhaust port 113 is formed.

In the bypass passage 115, when the particulate filter 120 is regenerated, the particulate matter filtered by the particulate filter 120 or the residue remaining as the particulate matter is incinerated is not directly discharged to the exhaust port 113, and the bypass passage 115 The exhaust port 113 may be formed to bypass the exhaust port 113 in the filter housing 110 so as to be discharged through the filter housing 110 .

One end of the bypass passage 115 may be located at the lower part of the exhaust port 113 at a position corresponding to the position where the exhaust gas is exhausted to the exhaust port 113, and the other end of the bypass passage 115 is again connected to the exhaust port 113. can be connected

Meanwhile, in the bypass passage 115, the exhaust gas passing through the particulate filter 120 is sent to the exhaust port 113 or selectively opening and closing the exhaust port 113 and the bypass passage 115 to pass through the bypass passage 115. A door 170 may be installed, and the selection door 170 closes the exhaust port 113, opens the bypass passage 115, or opens the exhaust port 113 depending on whether the particulate filter 120 is regenerated. The bypass passage 115 may be closed.

The selection door 170 is formed in the shape of a plate and can selectively open and close the exhaust port 113 and the bypass passage 115 by moving the selection door 170 up and down by the door driving mechanism 171 .

At this time, the door driving mechanism 171 may be a pneumatic or hydraulic cylinder, or may be implemented in the form of a rack and a rack gear driven by a driving motor.

A collection filter 180 for filtering out particulate matter or residue discharged from the particulate filter 120 may be installed in the bypass passage 115, and the collection filter 180 is separated and the residue is treated in the bypass passage 115. Then, an inspection port (not shown) may be formed so as to be installed in the bypass passage 115 again.

Of course, the inspection port is opened and closed by the inspection door, and the collecting filter 180 may be separated or installed through the inspection port in a form in which the operator opens and closes the inspection door.

The collection filter 180 may be a bag filter capable of filtering out preset particles, and the bag filter may be formed of a metal mesh that is not damaged even at high temperatures.

The DPF device 100 for a power generator with improved particulate matter treatment performance according to an embodiment of the present invention further includes a heating means for heating the particulate filter 120 for regeneration, and a pressure measuring sensor for measuring exhaust pressure. The heating means may be a heater heated by electricity, a burner heated by burning fuel, lubricating oil mixed with exhaust gas, or exhaust gas heated to a high temperature.

The pressure measurement sensor can measure the pressure of the exhaust gas flowing into the inlet 111 of the filter housing 110 and the pressure of the exhaust gas discharged through the exhaust port 113, and the pressure of the exhaust gas 113 measured by the pressure measurement sensor. The particulate filter 120 may be regenerated in order to relieve the exhaust pressure by operating the screen driver 150 according to the pressure difference between the pressure and the exhaust gas and simultaneously removing the particulate matter accumulated on the particulate filter 120 .

Regeneration of the particulate filter 120 is controlled by a regeneration controller, which incinerates particulate matter accumulated on the particulate filter 120 through high-temperature heat, or exhausts the particulate filter 120 through the screen driving unit 150. The gas flow path can be changed.

Here, regeneration of the particulate filter 120 will be described in more detail when the following actions and effects are described.

The actions and effects of each component described above will be explained.

The DPF device 100 for a power generator with improved particulate matter treatment performance according to an embodiment of the present invention removes particulate matter contained in exhaust gas inside a filter housing 110 in which an inlet 111 and an exhaust port 113 are formed. A particulate filter 120 is installed, and a plurality of filter channels 121 are formed in a lattice form so that the inlet 111 and the outlet 113 communicate with each other.

In addition, the first screen 130 is disposed on one side of the particulate filter 120, the second screen 140 is disposed on the other side of the particulate filter 120, and the first screen 130 has a filter channel ( 121), the first communication hole 131 is formed in a mosaic shape to partially close and partially open the filter channels 121 arranged in a lattice shape.

In the second screen 140, like the first screen 130, the filter channels 121 in which the second communication holes 141 communicating with the filter channels 121 are arranged in a lattice form are partially sealed and partially opened. It is formed in the form of a mosaic so as to

On the other hand, the first screen 130 and the second screen 140 are installed to be slidable up and down on both sides of the particulate filter 120 by the screen driving unit 150 so as to be opposite to each other.

The screen driving unit 150 includes a screen driving unit 151, the first screen 130 is rotatably coupled to one end of the screen driving unit 151 by a screen hinge unit 153, and the screen driving unit 151 The second screen 140 is rotatably coupled to the other end of the screen hinge part 153, and the central portion of the screen drive unit 151 is rotatably connected to the filter housing 110 by the hinge pin 155. It is installed to seesaw between the screen 130 and the second screen 140.

The screen drive table 151 seesaw moves around the hinge pin 155 by a drive motor, and can slide the first screen 130 and the second screen 140 up and down so as to be opposite to each other.

The screen driving unit 150 may include a spacing driving unit 160, and the spacing driving unit 160 rotates the first screen 130 and the second screen 140 on both sides of the particulate filter 120, respectively. (120), or may be separated from the particulate filter (120).

The separation driving unit 160 is the pressing unit 161a and 163a at both ends of the first connecting unit 161 to which the first screen 130 is coupled and the second connecting unit 163 to which the second screen 140 is coupled to face each other. ) Is formed, and a driving cam 165 is installed between the pressing parts 161a and 163a on both sides, and the driving cam 165 is rotated by a driving motor to press or press the pressing parts 161a and 163a. unlock

When the pressing parts 161a and 163a are pressed by the drive cam 165, the ends of the first screen 130 and the second screen 140 are mutually connected by the first connecting rod 161 and the second connecting rod 163. The first screen 130 and the second screen 140 are brought into close contact with the particulate filter 120 while being pushed in opposite directions and rotating around the screen hinge 153 .

On the other hand, when the pressure of the pressing parts 161a and 163a is released by the driving cam 165, the elastic force of the support spring 167 supporting the first connecting rod 161 and the second connecting rod 163 by the elastic force While moving in the direction in which the first connecting rod 161 and the second connecting rod 163 converge, the first screen 130 and the second screen 140 are rotated about each screen hinge part 153 as the center of the particulate filter. In (120), the first screen 130 and the second screen 140 are spaced apart.

Meanwhile, a bypass passage 115 bypassing the exhaust vent 113 is installed in the portion of the filter housing 110 where the exhaust vent 113 is formed, and between the exhaust vent 113 and the bypass passage 115, the exhaust vent 113 and A selection door 170 selectively opening and closing the bypass passage 115 is installed.

In the bypass passage 115, a collection filter 180 for filtering out particulate matter or residual matter dropped from the particulate filter 120 is installed, and the collection filter 180 installed in the bypass passage 115 is bypassed through the inspection hole. It is detachably coupled in the passage 115.

In the DPF device 100 for a generator having improved treatment performance of particulate matter according to an embodiment of the present invention configured as described above, the exhaust gas generated according to the operation of the generator flows into the filter housing 110 through the inlet 111. The introduced exhaust gas passes through the particulate filter 120 .

At this time, the exhaust gas flowing into the particulate filter 120 passes through the filter channel 121 communicating with the first communication hole 131 of the first screen 130, and the opposite direction of the filter channel 121 passes through the first communication hole 131 of the first screen 130. Since it is blocked by the second screen 140, the pressure of the introduced exhaust gas moves to the adjacent filter channel 121, and the introduced filter channel 121 filters the particulate matter contained in the exhaust gas, and the adjacent filter channel It flows into (121).

Exhaust gas from which particulate matter has been filtered by the adjacent filter channel 121 passes through the particulate filter 120 through the second communication hole 141 of the second screen 140 and then is exhausted to the outside through the exhaust port 113, or through the SCR After passing through the reducing agent, it can be reduced to less polluted substances and then exhausted to the atmosphere.

On the other hand, when the pressure of the exhaust port 113 measured by the pressure measuring sensor is greater than the pressure difference set in advance from the pressure of the inlet port 111, the regeneration controller in charge of regeneration of the particulate filter 120 primarily operates the particulate filter 120 Before regenerating the particulate matter, the screen driver 150 is driven so that the particulate matter can be exhausted through the filter channel 121 where no particulate matter is accumulated in the particulate filter 120.

The screen driver 150 seals the filter channel 121 communicating with the first communication hole 131 of the first screen 130, and the filter channel 121 blocked by the second screen 140 communicates with the second communication hole 131. The first screen 130 and the second screen 140 are slid in opposite directions so as to open in communication with the ball 141 (see FIG. 4).

Then, the regeneration controller operates the door driving mechanism 171 to close the exhaust port 113 through the selection door 170 and open the bypass passage 115 .

In this way, when the first screen 130 and the second screen 140 are moved up and down by the screen driving mechanism primarily by the regeneration controller, the filter channel 121 on which particulate matter is accumulated moves along the first screen 130. , the adjacent filter channels 121 communicate with and open the first communication hole 131, and the filter channels 121 blocked by the second screen 140 are connected to the adjacent filter channels 121 through the second communication hole. While being open in communication with 141, the exhaust gas introduced into the inlet 111 flows through the filter channel 121 adjacent to the filter channel 121 on which particulate matter is accumulated.

In addition, the exhaust gas flowing into the inlet 111 enters through the filter channel 121 where particulate matter is not accumulated, and filters out the particulate matter while moving to the adjacent filter channel 121 .

At this time, the regeneration controller opens the bypass passage 115 through the selector door 170 and closes the exhaust port 113, so that when the particulate matter accumulated in the filter channel 121 is discharged toward the exhaust port 113, the bypass passage 115 ), while being filtered by the collection filter 180, it is exhausted through the exhaust port 113.

And, secondarily, when the exhaust pressure is lower than the exhaust pressure introduced by the pressure measuring sensor, it is determined that particulate matter is accumulated in all filter channels 121 of the particulate filter 120, and the regeneration controller determines that the particulate filter ( 120), when regenerating the particulate filter 120, the pressing force of the pressing parts 161a and 163a pressed on both sides is released in the form of rotating the drive cam 165 by driving the separation drive unit 160 (See Fig. 6).

When the pressing force of the pressing parts 161a and 163a is released, the first connecting rod 161 and the second connecting rod 163 move in a direction in which they converge with each other by the elastic force of the support spring 167, overlapping the particulate filter 120. Both ends of the particulate filter 120 are opened by separating the first screen 130 and the second screen 140.

At this time, of course, the selection door 170 closes the exhaust port 113 and the bypass passage 115 remains open.

When both ends of the particulate filter 120 are opened, the particulate matter accumulated in the filter channel 121 is incinerated by the heating means, and the remaining residue moves from the filter channel 121 toward the exhaust port 113, and passes through the bypass passage ( While being collected by the collection filter 180 installed in 115), the exhaust gas from which particulate matter is removed is exhausted through the exhaust port 113.

On the other hand, when the regeneration of the particulate filter 120 is completed, the regeneration controller operates the selector door 170 to open the exhaust port 113 and operate the separation drive unit 160 while the bypass passage 115 is sealed. By bringing the first screen 130 and the second screen 140 into close contact with both sides of the particulate filter 120 again, the exhaust gas passes through the particulate filter 120 to filter out particulate matter and is then exhausted again through the exhaust port 113. Post-treatment of the exhaust gas is performed in the form of

In this way, the DPF device 100 for a power generator with improved particulate matter treatment performance according to an embodiment of the present invention first screen 130 and second screen 140 according to the exhaust pressure measured by the pressure measuring sensor The position of the filter channel 121 for filtering particulate matter is prevented from being lowered by changing the position of the filter channel 121 for filtering particulate matter by sliding, and the first screen 130 and the second screen 130 are secondarily moved according to the exhaust pressure measured by the pressure measuring sensor. By regenerating the particulate filter 120 after separating the second screen 140 from the particulate filter 120, damage to the particulate filter 120 due to frequent regeneration of the particulate filter 120 can be minimized and its lifespan can be extended. .

Therefore, in the DPF device 100 for a power generator with improved particulate matter treatment performance according to an embodiment of the present invention, the first screen 130 and the second screen 140 form a filter channel 121 through which particulate matter passes. Since the position is changed, the life of the particulate filter 120 can be improved by minimizing the regeneration of the particulate filter 120 by heat, and the particulate matter is filtered through the unused filter channel 121 to treat the particulate matter. can improve performance.

In addition, since the particulate filter 120 is regenerated after changing the filter channel 121 by the first screen 130 and the second screen 140, frequent regeneration of the particulate filter 120 causes the particulate filter 120 to ) can be prevented from deteriorating durability.

In addition, when regenerating the particulate filter 120, the first screen 130 and the second screen 140 are opened to perform regeneration in a state in which the filter channel 121 is completely opened, so that the particulate filter 120 is easily operated. In addition, since the residue remaining after incineration is exhausted through the bypass passage 115, the regeneration of the particulate filter 120 can be improved.

In addition, when the filter 180 is installed in the bypass passage 115 to regenerate the particulate filter 120 or when the position of the filter channel 121 for filtering out the particulate matter is changed, particulate matter or residue is discharged through the exhaust port 113. In addition to being able to prevent discharge, foreign substances accumulated in the collection filter 180 can be easily disposed of by configuring the collection filter 180 to be detachable.

In the above, the embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and it is recognized that the embodiments of the present invention are easily changed by those skilled in the art to which the present invention belongs and are equivalent. including all changes and modifications within the scope of

100: DPF device for generator 110: filter housing
111: inlet 113: exhaust
115 bypass passage 120 particulate filter
121: filter channel 130: first screen
131: first communication hole 140: second screen
141: second communication hole 150: screen driving unit
151: screen drive unit 153: screen hinge unit
155: hinge pin 160: spaced driving unit
161: first connecting rod 161a, 163a: pressing part
163: second connecting rod 165: drive cam
167: support spring 169: spaced driving housing
170: select door 171: door driving mechanism
180: collection filter

Claims (6)

A particulate matter filter housing including a particulate filter through which a plurality of filter channels are formed to remove particulate matter, and a filter housing accommodating the particulate filter and having an inlet through which exhaust gas is introduced on one side and an exhaust port through which exhaust gas is discharged on the other side. In the DPF device for generators with improved processing performance,
A first screen positioned at one side of the particulate filter to form first communication holes communicating with some of the filter channels among the plurality of filter channels and to close the remaining portions;
A second communication pipe located on the other side of the particulate filter, opposite to the first screen, closes the filter channel opened by the first communication hole and opens the filter channel closed by the first screen. A second screen on which balls are formed, and
and a screen driver for driving the first screen and the second screen so that the first screen and the second screen open and close the filter channels in opposite directions. Device. According to claim 1,
The screen driving unit
A screen hinge portion rotatably coupling the first screen and the second screen so that the first screen and the second screen overlap each other at both ends of the particulate filter or are spaced apart from the particulate filter to open the filter channel. A DPF device for generators with improved processing performance of particulate matter, characterized in that. According to claim 1,
The screen driving unit
The first screen is coupled to one end and the second screen is coupled to the other end to open and close the filter channel so that the first screen and the second screen are seesawed opposite to each other, and one end and the other end are coupled to the center so that one end and the other end seesaw. A DPF device for a generator with improved treatment performance of particulate matter, characterized in that it comprises a screen driving base for rotatably coupling the part. According to claim 1,
The filter housing is
A DPF device for a power generator with improved particulate matter treatment performance, characterized in that it includes a bypass passage through which particulate matter dropped from the particulate filter when regenerating the particulate filter is bypassed at a position where the exhaust port of the filter housing is formed. According to claim 4,
The bypass passage
A DPF device for generators with improved particulate matter treatment performance, characterized in that it includes a collection filter installed in the bypass passage to filter out particulate matter passing through the bypass passage. According to claim 4,
and a selector door for selectively opening and closing the bypass passage or the exhaust port so that the exhaust gas passing through the particulate filter is exhausted to the bypass passage or the exhaust port.

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