WO2023054770A1

WO2023054770A1 - Spark eliminated fume smoke remover capable of preventing fire

Info

Publication number: WO2023054770A1
Application number: PCT/KR2021/013481
Authority: WO
Inventors: 정대근
Original assignee: 주식회사 명진기공
Priority date: 2021-10-01
Filing date: 2021-10-01
Publication date: 2023-04-06

Abstract

The present invention relates to a spark eliminated fume smoke remover, capable of preventing fire, which is installed in a processing factory, for plasma- or laser-cutting metal which generates a large amount of dust, to remove dust included in fume generated while plasma- or laser-cutting and supply clean air. More specifically, the present invention relates to a spark eliminated fume smoke remover, capable of preventing fire, which can completely prevent a filter, which is installed therein, from catching fire due to sparks which enter together with fume generated when cutting metal by means of a plasma or a laser.

Description

Flame-removing fume smoker that can prevent fire occurrence

The present invention is installed in a processing plant that cuts metals that generate a large amount of dust with plasma or laser, and removes dust included in fumes generated during plasma or laser cutting to provide clean air. It relates to a removal fume smoke remover, and more specifically, fire prevention that can completely prevent a fire from occurring in a filter installed inside by a flame that is included in the fumes generated when cutting metal with plasma or laser. relates to a possible flame-removing fume eliminator.

In general, metal cutting for cutting metal includes plasma cutting, laser cutting, water jet cutting, wire cutting, and cutting using a shaver.

Among the above methods, plasma cutting uses high-temperature heat and is mainly used to process pulp plates or stainless steels and to cut metals having a thickness of 20 mm or more. Since air or oxygen is used, it is also called air plasma or oxygen plasma. This plasma cutting method is inexpensive, but secondary processing is essential because a lot of burrs are generated after cutting the metal plate.

Among the above methods, laser cutting is a method of melting and processing iron and stainless steel by concentrating light at a high density. Using a computer, the laser beam moves according to the drawing to process the desired shape, and it is possible to process metal sheets with a thickness of 20 mm or less. It has advantages of low processing cost, no noise during processing, and fast cutting operation.

During the plasma cutting or laser cutting, fumes, which are smoke containing dust, are generated, and the fumes include flames. When fume containing such sparks and dust flows into a smoke eliminator and is filtered by a filter, the filter in the smoke eliminator may catch fire or be damaged by flames included in the fumes.

In order to solve the above problem, in Patent Publication No. 10-2020-0008243 (2020.01.28.), "A mesh net is installed to prevent the embers from sticking to the filter in a smoke eliminator that can accompany embers, such as a laser processor, and a mesh If the embers separated by the network are allowed to accumulate dust in the dust collector through the bypass passage, install a mesh network with a wire diameter of 0.3 mm or more and 2 mm or less, and a line spacing of 0.25 mm or more and 15 mm or less. It is proposing a dust collector that does.

However, the dust collector of the conventional Patent Publication No. 10-2020-0008243 has a mesh net installed to prevent the embers from sticking to the filter in a smoke extinguisher that can accompany embers, but the mesh net itself forms fine holes. Although the mesh network blocks a large portion of the embers, some small embers or flames pass through the mesh network as it is through the fine holes formed in the mesh network and adhere to the filter, which often causes the filter to be damaged or a fire to occur.

The flame removal fume smoker capable of preventing fire occurrence according to the present invention is intended to solve the following problems.

An object of the present invention is to arrange a plurality of projections for reducing the inflow rate of fume in a zigzag pattern on the inner wall surface of the fume inflow passage to reduce the inflow rate of fume going to the filter in the smoke eliminator and completely turn off the flame included in the inflowing fume. Disclosed is a flame removing fume smoke eliminator capable of preventing fire occurrence by preventing damage to a filter installed in the smoke eliminator or fire occurrence.

Another object of the present invention is to install a fire suppression unit in a case adjacent to a fume inlet so that when a fire occurs in a filter in a smoke eliminator, the fire can be extinguished with the fire suppression unit, thereby minimizing damage to the filter installed in the smoke eliminator. It is to provide a flame removing fume eliminator capable of preventing.

In order to solve the above problems, the flame removal fume smoker capable of preventing fire occurrence according to the present invention is configured as follows.

Housing 10 having a space therein; a fume inlet passage 20 formed on one side of the housing 10 and through which fume, which is smoke generated when metal is cut with a plasma laser, flows; A fume inlet 31 is disposed in the housing 10 and communicates with the fume inlet passage 20, and an air flow passage 32-1 communicating with the fume inlet 31 and communicating with each other around the outer circumferential surface ) Forming, a case 30 in which a plurality of filters 32 are installed horizontally up and down and left and right on the inside, and a plurality of filters 32 having a connection pipe 32-2 at one end are disposed; A space 40 vertically formed in the housing 10 where the connection pipe 32-2 of the case 30 is located; an air flow guide pipe 50 connected to the connection pipe 32-2 and disposed vertically in the space 40; an air discharge pipe 60 connected in communication with the lower end of the air flow guide pipe 50 in the space 40; On the lower side of the case 30, the filters 32 disposed at the vertical lower side communicate with the air flow passage 32-1 of the filters 32 disposed at the lower vertical side among the plurality of filters 32. Dust collector 70 installed on the lower side; a fan 80 having an intake passage 81 connected to the fan 80 to communicate with the fume inlet 31 and the air flow passage 32-1 and installed on one side of the case 30; A fume that communicates with the space 40 and includes a filtered air outlet 90 formed in the housing 10 to discharge the filtered air to the outside, and in which the fume flows immediately before the fume flows into the filter 32 It is characterized in that a plurality of fume inflow velocity reducing means for reducing the velocity of flowing fumes is provided in the flow passage.

It is characterized in that the plurality of fume inflow rate reducing means is a plurality of fume inflow

rate reducing protrusions

21 and 22 arranged in a zigzag pattern on the inner wall surface of the fume inflow passage 20 and facing each other.

It is characterized in that the plurality of

protrusions

21 and 22 for reducing the inflow rate of fume are inclined in a direction in which the fume flows in and proceeds in a convex state upward.

It is characterized in that the plurality of

projections

21 and 22 for reducing the fume inflow rate are four

projections

21 and 22 for reducing the inflow rate of fume.

The present invention can exert the following effects by the above solution.

First, a plurality of protrusions for reducing the inflow of fume are zigzag on the inner wall of the fume inflow passage to reduce the inflow of fume to the filter in the smoke eliminator, thereby completely turning off the flame included in the inflow of fume. There is an effect of providing a flame removal fume eliminator capable of preventing fire occurrence that can block damage to the filter or fire occurrence.

Second, the fire suppression unit is installed in the case adjacent to the fume inlet so that the fire can be extinguished with the fire suppression unit when a fire occurs in the filter in the smoke eliminator, thereby minimizing damage to the filter installed in the smoke eliminator. It has the effect of providing a fume eliminator.

1 is a front view of a flame removing fume smoke eliminator capable of preventing fire occurrence according to a first embodiment of the present invention.

FIG. 2 is a simplified view of FIG. 1 to show the flow of fumes introduced into and discharged from FIG. 1;

Figure 3 is a side view of Figure 1;

FIG. 4 is a simplified diagram illustrating a simplified view of FIG. 3 to show the flow of fumes flowing in the drawing of FIG. 3;

5 is a front view of a flame removing fume smoke eliminator capable of preventing fire occurrence according to a first embodiment of the present invention, and is a simplified view showing the flow of flowing fume.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that this is not intended to limit the technology described herein to specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments of the present invention. In connection with the description of the drawings, like reference numerals may be used for like elements.

In addition, expressions such as “first,” “second,” and the like used in the present invention may modify various components regardless of order and/or importance, and to distinguish one component from another. It is used only and does not limit the corresponding components. For example, 'first part' and 'second part' may indicate different parts regardless of order or importance. For example, without departing from the scope of rights described in the present invention, a first element may be called a second element, and similarly, the second element may also be renamed to the first element.

In addition, the terms used in the present invention are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art described in the present invention. Among the terms used in the present invention, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present invention, an ideal or excessively formal meaning not be interpreted as In some cases, even terms defined in the present invention cannot be interpreted to exclude embodiments of the present invention.

Hereinafter, looking at the embodiments of the present invention for solving the above problems together with the accompanying drawings are as follows.

(First embodiment)

1 is a front view of a flame removing fume smoker capable of preventing fire occurrence according to a first embodiment of the present invention, FIG. 3 is a side view of FIG. 1, and FIG. 4 shows the flow of fume flowing in the drawing of FIG. Fig. 3 is a simplified diagram showing a simplified diagram.

1 to 4, the flame removal fume smoker capable of preventing fire occurrence according to the first embodiment of the present invention includes a housing 10, a fume inlet passage 20, a case 30, and a space 40. , an air flow induction pipe 50, an air discharge pipe 60, a dust collector 70, a fan 80, and a filtering air outlet 90.

The housing 10 has a space inside the fume inlet passage 20, the case 30, the space 40, the air flow induction pipe 50, the air discharge pipe 60, the dust collector 70, the fan 80, and a filtering air outlet 90 may be installed or formed.

The fume inlet passage 20 is formed on one side of the housing 10, and fume, which is smoke generated when metal is cut with a plasma laser, is introduced. A plurality of fume flow rate reducing means for reducing the flow rate of the flowing fume are provided in the fume flow passage through which the fume flows immediately before the fume flows into the filter 32. In the first embodiment of the present invention, , the plurality of fume inflow velocity reducing means is a plurality of fume inflow

velocity reducing protrusions

21 and 22 arranged in a zigzag pattern on the inner wall surface of the fume inflow passage 20 and facing each other. By this structure, the flow rate of the fume flowing into the fume inlet passage 20 is reduced, and the flow rate of flames or embers accompanying the fume is also reduced accordingly, so that the flame or embers flow through the fume inlet passage 20 It turns off naturally in the process.

The case 30 is disposed in the housing 10 to form a fume inlet 31 communicating with the fume inlet passage 20, and communicates with the fume inlet 31 around the outer circumference of the air A flow passage 32-1 is formed, and a plurality of filters 32 are installed horizontally up and down and left and right inside, and a plurality of filters 32 having a connection pipe 32-2 are disposed at one end. Accordingly, the fume flowing into the fume inlet passage 20 moves sequentially through the fume inlet 31, the air flow passage 32-1, the filter 32, and the connection pipe 32-2, In the process, the dust contained in the fume flowing through the fume inlet 31 and the air flow passage 32-1 falls down and is collected in the dust collector 70, and the fume that has passed through the filter 32 is filtered Only purified air is moved to the connecting pipe 32-2.

The space 40 is vertically formed in the housing 10 where the connection pipe 32-2 of the case 30 is located.

The air flow induction pipe 50 is connected to the connection pipe 32-2 and is vertically disposed in the space 40 so that the filtered and purified air flowing in from the connection pipe 32-2 is supplied to the air. It moves downward through the flow guide pipe 50.

The air discharge pipe 60 is connected in communication with the lower end of the air flow guide pipe 50 in the space 40 to discharge air introduced from the air flow guide pipe 50 into the space 40 .

The dust collection container 70 is disposed at the lower side of the case 30 and communicates with the air flow passage 32-1 of the filters 32 disposed at the lower vertical side among the plurality of filters 32. It is installed on the lower side of the filters 32. According to this, as described above, the dust included in the fume flowing through the fume inlet 31 and the air flow passage 32-1 falls down and is collected in the dust collector 70.

The fan 80 has an intake passage 81 connected to the fan 80 so as to communicate with the fume inlet 31 and the air flow passage 32-1, and at one side of the case 30 It is installed. When the fan 80 is operated, external fumes communicating with the fume inlet passage 20 communicating with the fume inlet 31 through the intake passage 81 are transferred to the fume inlet passage 20, the fume inlet 31, It can be moved through the air flow passage 32-1, the filter 32, and the connection pipe 32-2 in sequence.

The filtering air outlet 90 communicates with the space 40 and is formed in the housing 10 to discharge the filtered air to the outside. According to this, the filtered air discharged to the space 40 moves upward again and is discharged to the outside through the filtering air outlet 90 communicating with the air discharge space 40, thereby preventing dust from being discharged to the outside and leaving only clean air outside. can contribute to the prevention of environmental pollution.

In another embodiment, as shown in FIG. 1 , the plurality of

protrusions

21 and 22 for reducing the flow rate of fume are formed convex upward in a direction in which the fume flows in and proceeds. With this configuration, the fumes rotate primarily in the projection 21 for reducing the inflow rate of fume located at the uppermost upstream of the fume inflow side of the fume inflow passage 20, and then the rotating fumes are pushed back by other fume that continues to flow in. The fumes are rotated secondarily at the next fume inflow rate reduction protrusion 22, and then the rotating fumes are pushed by other fumes that continue to flow in, and then rotated and pushed again at the next fume inflow

rate reduction protrusions

21 and 22. In the process of repeating the moving process, the inflow speed of the flowing fume is reduced, and accordingly, the flame or embers included in the fume are extinguished.

In another embodiment, it is preferable that the plurality of

projections

21 and 22 for reducing the fume inflow rate are four

projections

21 and 22 for reducing the inflow rate of fume, but the present invention is not limited thereto, and other embodiments In an example, a configuration of 5, 6, 7, or 8 or more is also possible. When the number of

protrusions

21 and 22 for reducing the fume inflow rate is formed as four or more as described above, the

protrusions

21 and 22 for reducing the inflow rate of fume in the process of flowing the fume through the fume inflow passage 20 ), in the process of repeating the process of rotating and pushing, the inflow speed of the flowing fume is reduced, and accordingly, the flame or embers contained in the fume are surely extinguished.

(Second embodiment)

5 is a front view of a flame removing fume smoke eliminator capable of preventing fire occurrence according to a first embodiment of the present invention, and is a simplified diagram showing the flow of flowing fume.

As shown in Figure 5. A flame removing fume smoke eliminator capable of preventing fire occurrence according to a second embodiment of the present invention includes a housing 10 having a space therein; a fume inlet passage 20 formed on one side of the housing 10 and through which fume, which is smoke generated when metal is cut with a plasma laser, flows; a plurality of funnel-shaped cyclones 25 having upper sides connected to the fume inlet passage 20 in communication with each other and disposed in the left space of the housing 10; A fume inlet 31 is disposed in the housing 10 and communicates with the fume outlet on the upper side of the cyclone 25, and an air flow communicating with the fume inlet 31 and communicating with each other around the outer circumferential surface A case 30 forming a passage 32-1, horizontally installed vertically and horizontally inside a plurality of filters 32 having a connection pipe 32-2 at one end thereof; an air discharge flow part connected to the connection pipe 32-2 in the housing 10 and through which the filtered air passing through the plurality of filters 32 is discharged and flows; On the lower side of the case 30, the filters 32 disposed at the vertical lower side communicate with the air flow passage 32-1 of the filters 32 disposed at the lower vertical side among the plurality of filters 32. A dust collector 70 installed on the lower side; a fan 80 having an intake passage 81 connected to the fan 80 to communicate with the fume inlet 31 and the air flow passage 32-1 and installed on one side of the case 30; and a filtering air outlet 90 communicated with the air exhaust flow unit and formed in the housing 10 to discharge the filtered air of the air exhaust flow unit to the outside, wherein the fume flows into the filter 32. A plurality of fume flow rate reducing means for reducing the speed of the flowing fume is provided in the fume flow passage through which the fume immediately flows, and the plurality of fume flow rate reducing means is a plurality of the cyclones 25. .

As described above, the fume flow passage through which the fume flows immediately before the fume flows into the filter 32 is provided with a plurality of fume inflow rate reducing means for reducing the flow rate of the fume, but a plurality of fume inflow rate reduction means Since the means is composed of a plurality of the cyclones 25, the flow rate of the fume flowing into the fume flow passage is reduced, and accordingly, the flow rate of flames or embers accompanying the fume is also reduced, thereby reducing the flame or embers. It is naturally turned off in the process of flowing through the fume inlet passage 20.

That is, upper sides of the plurality of cyclones 25 are connected to the fume inlet passage 20 in communication. Therefore, in the process of spirally rotating from top to bottom along the inner wall surface of the cyclone 25 through the fume inlet passage 20 through the fume inlet passage 20, the relatively heavy dust falls downward, and the remaining air Again flows vertically upward from the center of the cyclone 25 and moves upward. Since this process takes a relatively long time, the flow time of the fume accompanying the flame or embers also increases, and accordingly, the flame or embers are naturally extinguished in the process of flowing the fume flow passage along the fume, so that the fume filters When reaching (32), it can be prevented from causing a fire in the filter (32).

In another embodiment, the cyclone 25 descends downward while rotating in a whirlwind or spiral direction due to the funnel structure of the cyclone 25, and then rises upward again at the center of the cyclone 25. , there is a case where a lot of air resistance is generated, resulting in noise or vibration. Therefore, the plates of the housing 10 are composed of double plates spaced apart from each other, and a sound-absorbing layer is disposed in the space formed by the gap between the double plates configured as described above to reduce noise generated from the cyclone 25. can absorb

In a further embodiment, the sound-absorbing layer is sterilized and dried by high-temperature heat treatment in a boiled rice straw state, and then subjected to a secondary rolling process to form a panel shape compression processing straw, and the surface of the compression processing straw Rice straw consisting of a hull bound around the hull, or rice hull composed of a rice straw husk bound around the surface of the compressed rice hull, or rice hull bound around the surface of the compressed rice hull with a metal mesh. In this way, since the sound-absorbing layer is made of rice or rice hull, it is environmentally friendly and can absorb noise generated from the cyclone 25 during use, and at the same time, the flame removal fume smoke eliminator capable of preventing fire occurrence of the present invention is decomposed after the expiration date of use And even at the time of disposal, there are no harmful factors to the environment, such as soil contamination.

In another additional embodiment, the flame removal fume smoker capable of preventing fire occurrence of the present invention includes a fixing device for fixing wheels installed on the bottom surface of the housing 10 and vibration of the housing 10 to which the wheels are fixed. It is also possible to further include a vibration damping unit for damping. According to this configuration, when noise and vibration are generated by the operation of the cyclone 25, the flame removing fume smoke eliminator of the present invention capable of preventing fire occurrence can reduce the vibration generated by the vibration damping unit.

In yet another additional embodiment, the flame removal fume eliminator capable of preventing fire occurrence of the present invention is installed inside the filtering air outlet 90 to finely control the gas discharged through the filtering air outlet 90. dust sensor for measuring dust; an integrated wattmeter installed on one side of the housing 10 to measure the amount of power consumed by the fan 80 for discharging air through the filtering air outlet 90; A sensor communication module that receives each measurement data from the vibration sensor and the integrated power meter, a server communication module that transmits the measurement data to the outside and receives correction data obtained by correcting the measurement data from the outside, and transmission from the server communication module A management server that receives the measured data and transmits correction data obtained by correcting the measured data to the server communication module, an output module that transmits the correction data to an output device, and a controller that controls the operation of the fan 80. A telemetry device including a; and a user terminal connected to the controller of the telemetry device.

The particle sensor is installed inside the filtering air outlet 90 to measure fine dust in the gas discharged through the filtering air outlet 90 .

The integrated wattmeter is connected to the fan 80 and is installed on one side of the housing 10 to measure the amount of power consumed by the fan 80 that discharges air through the filtering air outlet 90.

The vibration sensor receives measurement data from an integrated power meter connected to the vibration sensor and the fan 80 . The vibration sensor may transmit a signal for controlling the operation of the fan 80 to the fan 80 . A cover may be installed on the outlet of the filtering air outlet 90. The vibration sensor may transmit a signal for controlling opening and closing of the lid.

The telemetry device includes a sensor communication module that receives measurement data from the vibration sensor and the integrated wattmeter, a server communication module that transmits the measurement data to the outside and receives correction data obtained by correcting the measurement data from the outside; A management server that receives the measurement data transmitted from the server communication module and transmits correction data obtained by correcting the measurement data to the server communication module, an output module that transmits the correction data to an output device, and the fan 80 Includes a controller for controlling the operation of. The sensor communication module receives each measurement data from the vibration sensor and the integrator, transmits the measurement data to the outside in the server communication module, and receives correction data obtained by correcting the measurement data from the outside, and the management A server receives the measurement data transmitted from the server communication module, transmits correction data obtained by correcting the measurement data to the server communication module, transmits the correction data from the output module to an output device, and the controller transmits the correction data to the output device. By controlling the operation of the fan 80, the intake amount of the air introduced into the inlet pipe 20 and the filtering air outlet ( 90) to control the amount of air discharged.

(Third Embodiment)

The flame removing fume smoke eliminator capable of preventing fire occurrence according to the third embodiment of the present invention, in addition to the configuration of the flame removing fume smoke eliminator capable of preventing fire occurrence according to the first or second embodiment, fire occurrence a sensor that detects; a thermal infrared camera that captures an image of the occurrence of fire in the filter 32 and detects the temperature of the filter 32 where the fire occurs; a receiving unit for receiving an image captured and sensed by the thermal infrared camera and a temperature; a controller that receives the fire detection signal transmitted from the sensor and determines whether a fire has occurred by receiving the temperature value transmitted from the receiver; And a fire suppression unit for suppressing the fire by a fire occurrence signal transmitted from the controller, wherein the sensor, thermal infrared camera, receiver, controller, and fire suppression unit, although not shown, are adjacent to the fume inlet 31 It is installed in the case 30.

The sensor is a sensor installed in the case 30 to sense one of smoke, gas, heat, or flame (or embers) generated when the filter 32 burns in the event of a fire.

The thermal infrared camera is installed in the case 30 to capture an image of the filter 32 on fire and at the same time detect the temperature generated by the fire in the filter 32 on fire.

The receiving unit is connected to the thermal infrared camera by wire or wirelessly so as to receive an image captured by the thermal infrared camera. In addition, the receiving unit receives and outputs an image captured by the thermal infrared camera, and receives a temperature detected by the thermal infrared camera.

The controller is wired or wirelessly connected to the receiver to receive a temperature value transmitted from the receiver when a fire occurs. Accordingly, the controller determines whether a fire has occurred based on the fire detection signal detected by the sensor and the temperature value measured by the thermal infrared camera.

The fire suppression unit extinguishes the fire by a fire occurrence signal transmitted from the controller.

In another embodiment, the fire suppression unit is installed in the case 30 adjacent to the fume inlet 31 through which the fume introduced through the fume inlet passage 20 flows into the filter 32 in the case 30. It is a water mist atomizer that extinguishes the flame contained in the fume. With such a water mist spraying device, it is possible to extinguish the flame contained in the fume.

The present invention described above has been described with reference to one embodiment shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments therefrom. will have to be clarified. Therefore, the true technical protection scope of the present invention should be construed by the appended claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

explanation of code

10: housing

20: fume inlet passage

21, 22: projection for reducing fume inflow rate

25 : Cyclone

30: case

31: fume inlet

32: filter

32-1: air flow passage

32-2: Connector

40: filtering air exhaust space

50: air flow induction pipe

60: air discharge pipe

70: dust collector

80: fan

81: intake passage

90: filtered air outlet

Claims

A housing 10 having a space therein;

a fume inlet passage 20 formed on one side of the housing 10 and through which fume, which is smoke generated when metal is cut with a plasma laser, flows;

A fume inlet 31 is disposed in the housing 10 and communicates with the fume inlet passage 20, and an air flow passage 32-1 communicating with the fume inlet 31 and communicating with each other around the outer circumferential surface ) Forming, a case 30 in which a plurality of filters 32 are installed horizontally up and down and left and right on the inside, and a plurality of filters 32 having a connection pipe 32-2 at one end are disposed;

A space 40 vertically formed in the housing 10 where the connection pipe 32-2 of the case 30 is located;

an air flow guide pipe 50 connected to the connection pipe 32-2 and disposed vertically in the space 40;

an air discharge pipe 60 connected in communication with the lower end of the air flow guide pipe 50 in the space 40;

On the lower side of the case 30, the filters 32 disposed at the vertical lower side communicate with the air flow passage 32-1 of the filters 32 disposed at the lower vertical side among the plurality of filters 32. Dust collector 70 installed on the lower side;

a fan 80 having an intake passage 81 connected to the fan 80 to communicate with the fume inlet 31 and the air flow passage 32-1 and installed on one side of the case 30;

A filtering air outlet 90 communicated with the space 40 and formed in the housing 10 to discharge filtered air to the outside,

The fume flow path through which the fume flows immediately before the fume flows into the filter 32 is provided with a plurality of fume flow rate reducing means for reducing the flow speed of the fume, characterized in that the occurrence of fire can be prevented. Flame-removing fume smokers.
According to claim 1,

The plurality of fume inflow rate reducing means is a plurality of fume inflow rate reducing protrusions 21 and 22 disposed in a zigzag pattern on the inner wall surface of the fume inflow passage 20 and facing each other. Possible flame removal fume evaporator.
According to claim 2,

The plurality of projections 21 and 22 for reducing the fume inflow rate,

A flame removal fume smoke generator capable of preventing fire occurrence, characterized in that it is formed obliquely in a direction in which the fume flows in and proceeds in a convex upward state.
According to claim 3,

The plurality of projections (21, 22) for reducing the inflow rate of fume are four projections (21, 22) for reducing the inflow rate of fume.