TWI715042B - Filtering device of ventilation duct - Google Patents

Abstract

A filtering device of a ventilation duct includes a box, an air-inlet duct and an exhaust duct. The box includes a first chamber, a second chamber, a partition and a plurality of oil-gas separation elements. The second chamber is disposed at one side of the first chamber. The partition is disposed in the box so as to separate the first chamber and the second chamber. The oil-gas separation devices are disposed in the first chamber and connected with the partition. One end of the air-inlet duct is connected to the box and communication with the first chamber, and the other end of the air-inlet duct is connected to a machine. One end of the exhaust duct is connected to the box and communication with the second chamber, and the other end of the exhaust duct is connected to an exhaust device. Therefore, the filtering device of the ventilation duct can filter a filthy air and discharge a clean air via the oil-gas separation device thereof.

Description

Ventilation pipeline filter device

The present invention relates to a ventilation pipeline filtering device, and more particularly to a ventilation pipeline filtering device that separates oil mist from dirty air and discharges clean air through an oil-gas separation element.

In recent years, the awareness of environmental protection has risen, and all walks of life have begun to attach importance to environmental conservation. Air pollution is the most discussed topic. Among them, the dirty air discharged from factories has attracted attention. In order to avoid overheating of the tools of the processing machine during factory operations, cutting oil must be used to lubricate the tools and reduce the temperature of the tools. As a result, during the processing, the cutting oil will volatilize into the air with the high temperature of the processing machine. In order to avoid processing The dirty air discharged from the machine harms the health of workers and improves the quality and safety of the working environment. Factories often use ventilation pipes to exhaust the dirty air outdoors. However, this practice will cause air pollution.

In order to reduce the air pollution caused by the polluted air discharged from the factory, how to avoid separating the cutting oil volatilized into the air during processing and further purify the polluted air discharged from the processing machine has become a goal of the processing industry. Therefore, the development of a plant that can purify the factory The ventilation line filter device of the discharged dirty air is an important goal of the relevant industry.

The ventilation pipeline filtering device provided by the present invention separates the oil mist in the dirty air discharged from the processing machine from the air through an oil-gas separation element to discharge clean air.

According to an embodiment of the present invention, there is provided a ventilation pipe filtering device including a box, an air inlet pipe, and an exhaust pipe. The box body includes a first chamber, a second chamber, a partition and a plurality of oil and gas separation elements. The second chamber is located on one side of the first chamber. The partition is arranged in the box to separate the first chamber and the second chamber. The oil and gas separation element is arranged in the first chamber and connected with the partition. One end of the air inlet pipe is connected with the box body and communicated with the first chamber, and the other end is connected with the processing machine. One end of the exhaust pipe is connected with the box body and communicated with the second chamber, and the other end is connected with the exhaust device. Thereby, the ventilation pipe filtering device can filter the dirty air with oil mist discharged from the processing machine to avoid environmental pollution.

According to the ventilation pipe filter device of the previous embodiment, the box body may further include an air inlet opening and an air exhaust opening. The air inlet opening is arranged on a side surface of the box body and communicates with the first chamber, and the air inlet opening has a cross-sectional area of the air inlet opening. The exhaust opening is arranged on the other side surface of the box body and communicates with the second chamber, and the exhaust opening has a cross-sectional area of the exhaust opening. The cross-sectional area of the exhaust opening is smaller than the cross-sectional area of the inlet opening.

According to the ventilation duct filter device of the previous embodiment, the air inlet pipe may include an inlet air conveying part and an inlet air expansion part. The air inlet conveying part is connected with the processing machine and has a cross-sectional area of the air inlet conveying part. The cross-sectional area of the air inlet conveying part is smaller than the cross-sectional area of the air inlet opening. The air inlet expansion part is connected with the air inlet opening of the box body.

According to the ventilation pipe filter device of the previous embodiment, each oil and gas separation element may include a first filter unit and a second filter unit. The first filter unit covers the outer surface of the second filter unit.

According to the ventilation duct filter device of the previous embodiment, the first chamber has a first height. The oil and gas separation element has a second height. The second height is less than or equal to the first height.

According to the ventilation pipe filter device of the previous embodiment, the box body may further include an oil drain hole. The oil drain hole communicates with the first chamber.

According to the ventilation pipe filtering device of the previous embodiment, the box body may include a chamber floor, and the chamber floor may be a horizontal floor.

According to the ventilation duct filter device of the previous embodiment, the box body may include a chamber floor, and the chamber floor may be an inclined floor.

According to the ventilation pipe filtering device of the previous embodiment, the box body may further include a plurality of fixing parts and a plurality of connecting parts. The fixing member is arranged in the second chamber to fix the oil-gas separation element. One end of the connecting piece is connected with the fixing piece, and the other end is connected with the oil-gas separation element. The fixing member can be C steel.

100‧‧‧Ventilation pipeline filter device

110‧‧‧Box

111‧‧‧First Chamber

112‧‧‧Second Chamber

113‧‧‧Oil-air separation element

1131‧‧‧The first filter unit

1132‧‧‧Second filter unit

1133‧‧‧Oil-gas separation space

114‧‧‧Chamber floor

115‧‧‧Partition

1151‧‧‧Through hole

116‧‧‧Fixture

117‧‧‧Connector

1171‧‧‧First connector

1172‧‧‧Second connecting piece

118‧‧‧Air inlet opening

119‧‧‧Exhaust opening

120‧‧‧Air inlet pipe

121‧‧‧Air Inlet Transmission Department

122‧‧‧Inlet expansion

130‧‧‧Exhaust pipe

140‧‧‧Oil drain hole

200‧‧‧Exhaust device

300‧‧‧Processing machine

D1‧‧‧First height

D2‧‧‧Second height

θ‧‧‧Tilt angle

Fig. 1 shows a schematic diagram of a ventilation duct filtering device according to an embodiment of the present invention; Fig. 2A shows a cross-sectional view of a ventilation duct filtering device according to the embodiment of Fig. 1; Fig. 2B shows another according to the present invention One embodiment of the ventilation pipe filtering device Fig. 3 shows a perspective view of the ventilation pipe filter device according to the embodiment of Fig. 1; and Fig. 4 shows the oil and gas separation element and the box in the ventilation pipe filter device of the embodiment according to Fig. 1 Schematic diagram of the body.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings; and repeated elements may be represented by the same number.

Fig. 1 shows a schematic diagram of a ventilation duct filtering device 100 according to an embodiment of the present invention, Fig. 2A shows a cross-sectional view of the ventilation duct filtering device 100 according to the embodiment in Fig. 1, and Fig. 2B shows a diagram according to the present invention. A cross-sectional view of a ventilation duct filter device 100 according to another embodiment of the invention. As can be seen from FIG. 1, FIG. 2A and FIG. 2B, the ventilation duct filter device 100 includes a box body 110, an air inlet pipe 120 and an exhaust pipe 130. The air inlet pipe 120 is connected to the box body 110 and the processing machine 300. The exhaust pipe 130 is connected to the box body 110 and the exhaust device 200.

In detail, the box body 110 includes a first chamber 111, a second chamber 112, a partition 115 and a plurality of oil and gas separation elements 113. The second chamber 112 is located on one side of the first chamber 111. The partition 115 is arranged in the box 110 to divide The first chamber 111 and the second chamber 112 are separated. The oil-air separation element 113 is disposed in the first chamber 111 and connected to the partition 115. The oil-gas separation element 113 is used to purify the dirty air discharged from the processing machine 300. Specifically, in FIGS. 2A and 2B, the partition 115 is further used to support and fix a plurality of oil and gas separation elements 113. One end of the air inlet pipe 120 is connected to the box body 110 and communicates with the first chamber 111, and the other end is connected to the processing machine 300, so that the dirty air discharged from the processing machine 300 can flow into the box body 110 through the air inlet pipe 120 , And will not be discharged into the working environment. One end of the exhaust pipe 130 is connected with the box body 110 and communicated with the second chamber 112, and the other end of the exhaust pipe 130 is connected with the exhaust device 200 to discharge clean air to the outside. Thereby, the dirty air discharged from the processing machine 300 can flow along the air inlet pipe 120 to the first chamber 111 of the box body 110 through the operation of the air exhaust device 200, and the dirty air can be purified through the oil-gas separation element 113. The purified clean air will flow to the second chamber 112, and then be discharged to the outside through the exhaust pipe 130 and the exhaust device 200, thereby reducing air pollution.

Fig. 3 shows a perspective view of the ventilation duct filter device 100 according to the embodiment of Fig. 1, and Fig. 4 shows the relationship between the oil and gas separation element 113 and the box body 110 in the ventilation duct filter device 100 of the embodiment according to Fig. 1 Schematic. As shown in FIGS. 2A, 2B, 3, and 4, the box body 110 may further include an air inlet opening 118 and an air outlet opening 119. The air inlet opening 118 is arranged on a side surface of the box body 110 and communicates with the first cavity 111. The air inlet opening 118 has a cross-sectional area of the air inlet opening. The exhaust opening 119 is disposed on the other side surface of the box body 110 and communicates with the second chamber 112, and the exhaust opening 119 is communicated with the exhaust duct 130 to discharge clean air from the box body 110. In other words, the air inlet opening 118 and the air outlet opening 119 are provided in the box 110 different side surfaces. Specifically, in Figure 3, the exhaust opening 119 of the box 110 is provided on the opposite side surface of the air inlet opening 118, but it is not limited to this. The exhaust opening 119 has a cross-sectional area of the exhaust opening. The cross-sectional area of the exhaust opening is smaller than the cross-sectional area of the inlet opening. The air inlet pipe 120 includes an air inlet conveying part 121 and an air inlet expansion part 122. The inlet air conveying part 121 is connected to the processing machine 300. The air inlet transmission part 121 has a cross-sectional area of the air inlet transmission part. The cross-sectional area of the air inlet conveying part is smaller than the cross-sectional area of the air inlet opening. The air inlet expansion portion 122 is connected to the air inlet opening 118 of the box body 110. Specifically, in FIGS. 2A and 2B, the cross-sectional area of the air inlet expansion portion 122 gradually increases along the air inlet conveying portion 121 toward the air inlet opening 118. In detail, the dirty air of the processing machine 300 will flow along the inlet air conveying part 121 to the inlet air expansion part 122 and then enter the first chamber 111 of the box 110. The flow velocity of the dirty air in the air inlet pipe 120 may be 5 m/s, but is not limited to this. Due to the fact that the cross-sectional area of the air inlet conveying portion is smaller than the cross-sectional area of the air inlet opening and the cross-sectional area of the exhaust air opening is smaller than the cross-sectional area of the air inlet opening, the air pressure in the first chamber 111 will be lower than the pressure in the air inlet conveying portion 121, As a result, the time that the dirty air stays in the first chamber 111 of the box 110 is prolonged, and part of the oil mist in the dirty air drops into the first chamber 111, and the dirty air is further removed by the oil-gas separation element 113. The oil mist in the air is separated from the air, which can prevent the polluted air with the oil mist from being discharged to the outside and causing air pollution.

Please refer to Fig. 3 and Fig. 4 together. Specifically, in Fig. 3, the number of oil and gas separation elements 113 is 9, but it is not limited thereto. The oil and gas separation element 113 includes a first filter unit 1131, a second filter unit 1132 and an oil and gas separation space 1133. The first filter unit 1131 covers the outer surface of the second filter unit 1132. Specifically, in Figures 2A and 2B, the first filter The unit 1131 may be a non-woven fabric, and the second filter unit 1132 may be a polymer filter, but it is not limited thereto. The partition 115 has a plurality of through holes 1151. The through hole 1151 is provided corresponding to the oil and gas separation space 1133 of the oil and gas separation element 113, so that the oil and gas separation space 1133 is connected to the second chamber 112 to facilitate the flow of clean air to the second chamber 112. In detail, due to the operation of the exhaust device 200, the air flow in the box 110 is from the first chamber 111 to the second chamber 112. The dirty air in the first chamber 111 will pass through the first filter unit 1131 and the second filter unit 1132 of the oil and gas separation element 113 to be purified into clean air and enter the oil and gas separation space 1133 of the oil and gas separation element 113. The clean air in the oil-gas separation space 1133 will then enter the second chamber 112 through the through hole 1151 of the partition 115, and be discharged outside through the exhaust pipe 130 and the exhaust device 200. The first filter unit 1131 can separate the oil mist in the dirty air from the air, so that the oil mist drops into the first chamber 111. The second filter unit 1132 can further evolve the dirty air to generate clean air. Thereby, the dirty air discharged by the processing machine 300 will be purified into clean air by the oil-gas separation element 113 in the first chamber 111.

Please refer to FIG. 2A together, the first cavity 111 has a first height D1. The oil-gas separation element 113 has a second height D2. The second height D2 is less than or equal to the first height D1. When the second height D2 is equal to the first height D1, the oil and gas separation element 113 can be stably arranged in the first chamber 111, and corresponding to the top partition 115 and the box 110, which can prevent the partition 115 from hanging excessive oil and gas. The element 113 is separated and is dented and damaged. When the second height D2 is less than the first height D1, the oil and gas separation element 113 is connected to the partition 115 instead of directly connected to the box body 110, so the oil and gas separation element 113 will not be soaked in the first cavity. The waste oil formed by the oil mist in the chamber 111 can prevent the damage of the oil and gas separation element 113 and the reduction of the efficiency of the oil and gas separation.

Please refer to FIG. 2A in conjunction. In the embodiment of FIG. 2A, the box body 110 further includes a chamber bottom plate 114 and an oil drain hole 140. The chamber floor 114 is a horizontal floor. The oil drain hole 140 communicates with the first chamber 111 and is connected to either side of the chamber bottom plate 114 to facilitate the draining of waste oil in the first chamber 111 and facilitate the user to effectively recover the drained waste oil deal with.

Please refer to FIG. 2B in conjunction. In the embodiment in FIG. 2B, the box body 110 further includes a chamber bottom plate 114 and an oil drain hole 140. The chamber floor 114 is an inclined floor. The chamber bottom plate 114 has an inclination angle θ with the horizontal plane. The oil drain hole 140 communicates with the first chamber 111 and is connected to either side of the chamber bottom plate 114. Specifically, in Figure 2B, the chamber bottom plate 114 is inclined toward the oil drain hole 140, so that the waste oil in the first chamber 111 flows along the chamber bottom plate 114 toward the oil drain hole 140 and flows from the oil drain hole. 140 is discharged to prevent waste oil from accumulating in the first chamber 111 for a long time, and to facilitate the user to effectively recycle the discharged waste oil.

Please refer to FIGS. 3 and 4 together, the box body 110 may further include a plurality of fixing members 116 and a plurality of connecting members 117. The fixing member 116 is disposed in the second chamber 112 and connected to the partition 115, and is used to fix the oil-gas separation element 113. One end of the connecting piece 117 is connected to the fixing piece 116, and the other end of the connecting piece 117 is connected to the oil-gas separation element 113 to fix the oil-gas separation element 113. The fixing member 116 can be C steel, but is not limited to this. The connecting member 117 may include a first connecting member 1171 and a second connecting member 1172. One end of the first connecting piece 1171 is connected to the second filter unit 1132 of the oil-gas separation element 113, and the other end of the first connecting piece 1171 passes through the fixing piece 116 and It is connected with the second connecting member 1172 to fix the oil-gas separation element 113. Specifically, in Figure 4, the first connecting member 1171 is a screw, and the second connecting member 1172 is a nut, but it is not limited to this.

In summary, the ventilation pipe filter device of the present invention can provide the following advantages:

(1) The ventilation pipeline filter device can purify the dirty air discharged from the processing machine through the oil and gas separation element to discharge clean air, thereby reducing air pollution.

(2) The first filter unit of the oil and gas separation element can separate the oil mist from the air in the dirty air discharged by the processing machine, so that the oil mist drips into the first chamber and drains the waste oil through the oil discharge hole. In order to facilitate users to effectively recycle waste oil.

(3) The second filter unit of the oil-gas separation element can evolve dirty air to produce clean air, thereby reducing air pollution.

(4) The bottom of the chamber has an inclination angle θ with the horizontal plane, and is inclined toward the direction of the oil discharge hole, so that the oil and gas separation element will not be immersed in the waste oil formed by the oil mist dripping in the first chamber, so as to facilitate the waste removal. The oil is discharged from the oil discharge hole, thereby preventing waste oil from accumulating in the first chamber for a long time, and it is convenient for users to effectively recover the discharged waste oil.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the scope of the attached patent application.

100‧‧‧Ventilation pipeline filter device

110‧‧‧Box

120‧‧‧Air inlet pipe

121‧‧‧Air Inlet Transmission Department

122‧‧‧Inlet expansion

130‧‧‧Exhaust pipe

140‧‧‧Oil drain hole

200‧‧‧Exhaust device

300‧‧‧Processing machine

Claims (9)

A ventilation pipe filtering device includes: a box body, including: a first chamber; a second chamber located on one side of the first chamber; and a partition plate arranged in the box body to separate The first chamber and the second chamber; a plurality of oil and gas separation elements are arranged in the first chamber and connected with the partition; an air inlet opening; an air exhaust opening; a plurality of fixing parts are arranged on the first chamber Two chambers for fixing the oil and gas separation elements; and a plurality of connecting pieces, one end of each connecting piece is connected with a fixing piece, and the other end is connected with the oil and gas separation element; an air inlet pipe, one end of which is connected with the The box body is connected and communicated with the first chamber, the other end of which is connected with a processing machine; and an exhaust pipe, one end of which is connected with the box body and communicates with the second chamber, and the other end of which is connected with an exhaust air pipe Device connection; wherein the air inlet opening communicates with the air inlet pipe and the box body, the air outlet opening communicates with the air exhaust pipe and the box body, and the air inlet opening does not correspond to the air outlet opening. According to the ventilation duct filter device described in the first item of the patent application, the air inlet opening is arranged on a side surface of the box body and communicates with the first chamber, and the air inlet opening has an air inlet opening section. Area; and the exhaust opening is arranged on the other side surface of the box and communicates with the second chamber, the exhaust opening has a cross-sectional area of the exhaust opening; wherein the cross-sectional area of the exhaust opening is smaller than the inlet opening Cross-sectional area. As described in the second item of the scope of patent application, the air inlet pipe includes: an air inlet conveying part connected to the processing machine, and has a cross-sectional area of the air inlet conveying part, wherein the inlet air conveys The cross-sectional area of the part is smaller than the cross-sectional area of the air inlet opening; and an air inlet expansion part is connected with the air inlet opening of the box body. According to the vent line filter device described in the scope of patent application, each of the oil and gas separation elements includes: a first filter unit; and a second filter unit, wherein the first filter unit covers the second filter unit Outside surface. The ventilation pipe filter device described in the first item of the scope of patent application, wherein the first chamber has a first height; each of the oil and gas separation elements has a second height, wherein the second height is less than or equal to the first height height. According to the ventilation pipe filtering device described in the first item of the scope of patent application, the box body further includes an oil drain hole, and the oil drain hole communicates with the first chamber. According to the ventilation pipe filtering device described in the first item of the scope of patent application, the box body further includes a chamber bottom plate, and the chamber bottom plate is a horizontal bottom plate. As described in the first item of the patent application, the box body further includes a chamber bottom plate, and the chamber bottom plate is an inclined bottom plate. For the ventilation pipe filter device described in item 1 of the scope of patent application, the fixing parts are C steel.

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