JP6344581B1 - Gas purification device - Google Patents

Abstract

An object of the present invention is to provide a gas purifying apparatus capable of efficiently purifying contaminated gas containing impurities such as oil by preventing inflow of outside air from an overflow pipe. The gas purification device of the present invention communicates with the purification unit via a purification unit that separates impurities such as oil from the gas by introducing the gas into the liquid, an exhaust air unit, and an overflow pipe. And a drainage part in which the outlet side opening of the overflow pipe is positioned in the liquid stored inside, and by the exhausting action of the exhausting part, gas is sucked into the purification part from the intake port Then, the impurities are separated by introducing the gas into the liquid, and the gas after separating the impurities is sucked and exhausted from the exhaust port, while the liquid supply member continuously supplies the liquid to the purification unit. The liquid containing impurities separated from the gas in the purification section is discharged from the outlet side opening of the overflow pipe into the liquid stored in the drainage section. [Selection] Figure 2

Description

  The present invention relates to a gas purification device that purifies contaminated gas containing impurities such as oil.

  2. Description of the Related Art Conventionally, there is known a device that collects smoke discharged from impurities such as oil, for example, oil smoke generated from kitchen equipment such as a frying food cooker (fryer) and discharges it to the outdoors.

  The apparatus has a problem that a large amount of impurities such as vaporized oil and dust contained in the flue gas adhere to the inside of the hood and the exhaust duct, which is unsanitary and causes fire spread in a fire. In addition, since the apparatus directly discharges the smoke to the outdoors, there is a problem that the odor diffuses and pollutes the surrounding environment.

  Therefore, the present inventors have proposed an air purification device that can remove impurities such as oil contained in the flue gas (see Patent Document 1).

FIG. 4 shows a cross-sectional view of an example of the air purification device described in Patent Document 1.
The air purifying apparatus 1 shown in FIG. 4 communicates with an intake chamber 5 into which contaminated air is introduced, via the first communication port 14 formed below the intake chamber 5, and from the first communication port 14. A bubble chamber 6 in which bubbling plate members 16, 17, 18 having a large number of small holes are arranged at a higher position, a second communication port 19 formed below the bubble chamber 6, and a third formed above. A septic tank 3 having a three-tank structure having a sewage storage chamber 7 communicating through a communication port 20 is provided.
Further, the air purification device 1 described in FIG. 4 includes an exhaust member 4 connected to an exhaust port 26 provided in the sewage storage chamber 7.

  In the case of the air purification device 1 shown in FIG. 4, when the exhaust member 4 is operated in a state where water is stored in the septic tank 3, the septic tank is introduced from the inlet 10 provided in the intake chamber 5 by the suction action of the exhaust member 4. Contaminated air is sucked into 3. The contaminated air is introduced into the water in the intake chamber 5, moves from the first communication port 14 to the bubble chamber 6, passes through the bubbling plate members 16, 17, 18, and is purified. It passes through the sewage storage chamber 7 from the three communication ports 20 and is discharged from the exhaust port 26.

  By the way, in the case of the air purifying apparatus 1 shown in FIG. 4, the sewage that has become an emulsion due to the impurities separated from the contaminated air in the bubble chamber 6 is absorbed into the second chamber by the suction action of the exhaust member 4. It flows into the sewage storage chamber 7 from the communication port 19. The sewage flowing into the sewage storage chamber 7 is drained from an overflow pipe 23 provided in the sewage storage chamber 7 during operation of the exhaust member 4.

  However, in the air purification device 1 shown in FIG. 4, the inside of the sewage storage chamber 7 is in a negative pressure state due to the suction action of the exhaust member 4, and outside air flows from the overflow pipe 23, and the sewage is discharged. There is a problem that the contaminated air cannot be purified efficiently because it cannot be drained smoothly.

FIG. 5 shows a cross-sectional view of another example of the air purification device described in Patent Document 1.
The air purification apparatus described in FIG. 5 includes a purification tank 3 having a two-tank structure in which the sewage storage chamber 7 is omitted from the air purification apparatus illustrated in FIG.
Further, the air purification device described in FIG. 5 includes an exhaust member 4 (not shown) connected to an exhaust port 36 provided in the bubble chamber 6.

  In the case of the air purification device shown in FIG. 5, when the exhaust member 4 is operated in a state where water is stored in the septic tank 3, the septic tank 3 is introduced from the inlet 10 provided in the intake chamber 5 by the suction action of the exhaust member 4. Contaminated air is sucked into and introduced into the water. The contaminated air moves from the communication port 14 to the bubble chamber 6, passes through the bubbling plate members 16, 17, and 18, is purified, and then discharged from the exhaust port 36.

  By the way, in the case of the air purification apparatus described in FIG. 5, in the bubble chamber 6, the sewage which has become emulsion due to the impurities separated from the contaminated air is discharged from an overflow pipe (not shown) provided in the bubble chamber 6. Drained.

  However, in the case of the air purification device shown in FIG. 5 as well, the inside of the bubble chamber 6 is in a negative pressure state due to the suction action of the exhaust member 4, so that outside air flows from the overflow pipe and smoothes the sewage. Therefore, there is a problem that polluted air cannot be purified efficiently because it cannot be drained.

  Patent Document 1 describes that a trap is provided in the overflow pipe to prevent the inflow of outside air. However, even when a trap is provided in the overflow pipe, the outside air is used due to the suction action of the exhaust member 4. It is not easy to prevent the inflow of air, and there is room for further improvement in order to improve the purification efficiency of contaminated air.

On the other hand, in the air purification apparatus 1 shown in FIG. 4, the patent document 1 is provided with an electrode sensor for detecting the sewage water level in the sewage storage chamber 7, and by opening / closing control of the electromagnetic valve accompanying the ON operation of the electrode sensor, It is described that the sewage is drained from a drain pipe 24 provided at the bottom of the sewage storage chamber 7.
However, when an electrode sensor is provided, there is a possibility that the electromagnetic valve malfunctions due to the oil contained in the sewage adhering to the electrode sensor, and the air is not necessarily purified efficiently.

Japanese Patent No. 4336890

  Accordingly, an object of the present invention is to provide a gas purification device that can easily prevent the inflow of outside air from an overflow pipe and can efficiently purify contaminated gas containing impurities such as oil. To do.

In order to achieve the above object, the gas purification apparatus of the present invention comprises:
A purification unit that separates impurities such as oil from the gas by introducing the gas into the liquid, and has a suction port for sucking the gas and an exhaust port for exhausting the gas after the impurities are separated, A purifying part in which an overflow pipe for discharging a liquid containing an impurity separated from a gas and a liquid supply member for supplying the liquid is disposed;
An exhaust section connected to the exhaust port;
A drainage part that communicates with the purification part via the overflow pipe, and in which the outlet side opening of the overflow pipe is positioned in the liquid stored inside;
With
The height of the inlet side opening of the overflow pipe in the purification unit is positioned higher than the liquid level of the liquid stored in the drainage unit, and the height of the inlet side opening of the overflow pipe and the drainage in the purification unit. The liquid level height of the liquid stored in the liquid part is set to a height position relationship in which the liquid stored in the drainage part does not flow backward from the overflow pipe to the purification part due to the exhausting action of the exhausting part. ,
The height of the liquid level stored in the drainage part and the height of the outlet side opening of the overflow pipe are determined by the exhaust action of the exhaust part, so that the air in the drainage part is transferred from the overflow pipe to the purification part. It is set to the relationship of the height position that does not flow backwards,
Due to the exhaust action of the exhaust section, gas is sucked into the purification section from the intake port, impurities are separated by introducing the gas into the liquid, and the gas after separating the impurities is exhausted. While suctioning and exhausting from the mouth, liquid is continuously supplied from the liquid supply member to the purification unit, and liquid containing impurities separated from gas by the purification unit is discharged from the outlet side opening of the overflow pipe to the drainage unit. It is characterized in that it is discharged into the liquid stored in the container.

That is, the present invention
It has a purification part that separates impurities such as oil from the gas by introducing gas into the liquid, and the purification part has an intake port for sucking gas and an exhaust port for exhausting the gas after separating the impurity A gas purification device formed,
A gas purifier having a liquid supply member for supplying a liquid to the purifying section and an overflow pipe for discharging a liquid containing impurities separated from the gas from the purifying section and having an exhaust section connected to the exhaust port In the device
A drainage part communicating with the purification part via the overflow pipe,
The outlet side opening of the overflow pipe is located in the liquid stored in the drainage part,
Due to the exhaust action of the exhaust section, gas is sucked into the purification section from the intake port, impurities are separated by introducing the gas into the liquid, and the gas after separating the impurities is exhausted. While suctioning and exhausting from the mouth, liquid is continuously supplied from the liquid supply member to the purification unit, and liquid containing impurities separated from gas by the purification unit is discharged from the outlet side opening of the overflow pipe to the drainage unit. It is characterized in that it is discharged into the liquid stored in the container.

The gas purification apparatus of the present invention is
The drainage part has a liquid storage chamber and a drainage chamber partitioned by a weir plate, and an outlet side opening of the overflow pipe is positioned in the liquid stored in the liquid storage chamber, and the liquid storage chamber It is preferable that the liquid flowing out over the weir plate is discharged from the drainage chamber.

The gas purification apparatus of the present invention is
It is preferable that a trapping member for trapping impurities such as oil contained in the liquid flowing out from the liquid storage chamber beyond the barrier plate is disposed in the drainage chamber.

The gas purification apparatus of the present invention is
It is preferable that the drainage part is juxtaposed with the purification part.

The gas purification apparatus of the present invention is
It is preferable that the drainage part is disposed below the purification part.

The gas purification apparatus of the present invention is
After the separation unit has separated the impurities, the purification unit has an intake chamber in which the intake port for sucking gas is formed, a purification chamber for separating impurities such as oil from the gas by introducing the sucked gas into the liquid An exhaust chamber in which the exhaust port for exhausting the gas is formed,
The liquid supply member is disposed in the intake chamber, and the overflow pipe is disposed in the exhaust chamber.
In the purification chamber, a bubbling member having a large number of small holes and having substantially the same dimensions as the horizontal section of the purification chamber is disposed in a substantially horizontal state, while the exhaust section is in operation. The liquid is sometimes stored so that the gas introduced into the liquid sometimes passes upward through the small holes of the bubbling member in the liquid,
The purification chamber communicates with the intake chamber via a first communication port formed below the bubbling member, and is formed above the bubbling member so as to allow gas to pass therethrough and the bubbling. It is preferable to communicate with the exhaust chamber through a third communication port formed below the member.

The gas purification device of the present invention includes a drainage part communicating with a purification part via an overflow pipe, and an outlet side opening of the overflow pipe is positioned in the liquid stored in the drainage part, and the purification part The height of the opening on the inlet side of the overflow pipe is higher than the liquid level of the liquid stored in the drainage part, and the height of the opening on the inlet side of the overflow pipe in the purification part and the drainage part The liquid level of the liquid to be stored is set to a height position relationship in which the liquid stored in the drainage part does not flow back from the overflow pipe to the purification part by the exhausting action of the exhausting part. The liquid level stored in the drainage part and the height of the outlet side opening of the overflow pipe are such that the air in the drainage part flows back from the overflow pipe to the purification part by the exhausting action of the exhausting part. do not do It is set to the position relationship is, since the discharged liquid containing impurities separated from the gas by the purifying portion into the liquid to be stored in the waste liquid portion from the outlet opening of the overflow pipe, the drainage portion Only by setting the relationship between the liquid level height (liquid level) of the liquid to be stored and the height (depth) of the outlet side opening of the overflow pipe as described above, the overflow due to the exhausting action of the exhausting part Inflow of outside air from the pipe can be easily prevented.
Therefore, according to the gas purification apparatus of the present invention, since the liquid containing the impurities can be smoothly discharged from the overflow pipe, the contaminated gas containing impurities such as oil can be efficiently purified.

  The gas purification apparatus of the present invention has a liquid storage chamber and a liquid discharge chamber in which the drainage part is partitioned by a weir plate, and an outlet side opening of the overflow pipe is positioned in the liquid stored in the liquid storage chamber. If the liquid flowing out from the liquid storage chamber over the weir plate is discharged from the drainage chamber, the outlet of the overflow pipe with respect to the liquid level (liquid level) of the liquid storage chamber The liquid can be discharged outside the apparatus while maintaining the side opening at an appropriate height (depth) at which outside air does not flow.

  The gas purifying apparatus according to the present invention is such that the drainage chamber is provided with a trapping member that traps impurities such as oil contained in the liquid flowing out from the liquid storage chamber over the barrier plate. The liquid part can have a grease trap function.

The top view of the gas purification apparatus in embodiment of this invention AA sectional drawing of the gas purification apparatus of FIG. Sectional drawing of the gas purification apparatus in other embodiment of this invention. Sectional drawing of the gas purification apparatus described in patent document 1. FIG. Sectional drawing of the other gas purification apparatus described in patent document 1. FIG.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a plan view of a gas purification apparatus in an embodiment of the present invention. FIG. 2 shows a cross-sectional view of the gas purification device of FIG.
The gas purification device 101 according to the embodiment of the present invention includes a purification unit 110, an exhaust air unit 150, and a drainage unit 160.

  The purification unit 110 includes an intake chamber 120 that sucks gas into the purification unit 110, a purification chamber 130 that separates impurities such as oil from the sucked gas, and exhausts the gas after separating the impurities from the purification unit 110. An exhaust chamber 140 is provided.

  The intake chamber 120 communicates with the purification chamber 130 through a first communication port 131 formed in the lower portion. The purification chamber 130 communicates with the exhaust chamber 140 through a second communication port 141 formed at the upper portion and a third communication port 142 formed at the lower portion.

  The intake chamber 120 is provided with an intake port 121 and a supply pipe 122 for supplying liquid into the intake chamber 120. The exhaust chamber 140 is provided with an exhaust port 144 and an overflow pipe 145 that protrudes from the side surface of the exhaust chamber 140 to the outside.

On the bottom surface of the purification chamber 130, a drain pipe (not shown) having an opening / closing valve such as an electromagnetic valve is disposed.
If the bottom surface of the purification chamber 130 is formed to be lower than the bottom surfaces of the intake chamber 120 and the exhaust chamber 140 and the opening of the drain pipe is provided at a low position on the bottom surface, It is preferable for draining the liquid.

  In the purification chamber 130, a gas guide plate 132 that protrudes in the horizontal direction is formed at the upper edge of the first communication port 131. Above the gas guide plate 132, three bubbling members 133, 134, and 135, which are plate-like members having many small holes and have substantially the same dimensions as the horizontal section of the purification chamber 130, are substantially horizontal. It is arranged in the state.

  The purification chamber 130 includes a first liquid scattering prevention plate 136 above the bubbling member, a second liquid scattering prevention plate 137 above the first liquid scattering prevention plate 136 and below the second communication port 141. Is formed. A gas rectifying plate 138 is disposed at the second communication port 141.

  Here, the purification chamber 130 has a structure in which three layers of bubbling members 133, 134, and 135 are disposed. However, one or two layers may be disposed, and four or more layers may be disposed. It is good also as a structure. In addition, the gas guide plate 132 and the first liquid scattering prevention plate 136 may be omitted.

  The air exhaust unit 150 includes an air exhauster 151 such as a fan. A suction port of the exhaust fan 151 is connected to the exhaust port 144 formed in the exhaust chamber 140 of the purification unit 110 via a duct 153.

  The drainage unit 160 includes a liquid storage chamber 162 and a drainage chamber 163 that are partitioned by a weir plate 161. The drainage unit 160 communicates with the exhaust chamber 140 through the overflow pipe 145. The overflow pipe 145 is disposed in the liquid storage chamber 162 so that the outlet side opening is located. A drainage pipe 164 is disposed on the bottom surface of the drainage chamber 163.

  The gas purification apparatus 101 according to the embodiment of the present invention supplies the liquid into the intake chamber 120 from the liquid supply pipe 122 prior to the operation of the exhaust fan 151, and performs the purification through the first communication port 131. The liquid is stored in the purification unit 110 so that the bubbling members 133, 134, and 135 disposed in the chamber 130 are all at a liquid level (liquid level) that is submerged in the liquid.

  Further, in the drainage section 160, the liquid is stored in the liquid storage chamber 162 up to the height of the barrier plate 161 so that the outlet side opening of the overflow pipe 145 is positioned in the liquid.

  Here, in the gas purification apparatus 101 according to the embodiment of the present invention, the drainage section 160 is subjected to the negative pressure in the exhaust chamber 140 that is generated as the exhaust fan 151 is operated. The height of the inlet side opening of the overflow pipe 145 in the exhaust chamber 140 and the liquid storage chamber 162 are stored so that the liquid stored in 162 does not flow back from the overflow pipe 145 to the exhaust chamber 140. The liquid level (liquid level) of the liquid to be performed, in this example, the height of the weir plate 161 is set.

  In addition, the negative pressure in the exhaust chamber 140 generated by the operation of the exhaust fan 151 acts on the drainage portion 160, but the air in the drainage portion 160 is passed from the overflow pipe 145 to the exhaust chamber 140. In relation to the height position so as not to flow backward, the liquid level height (liquid level) of the liquid stored in the liquid storage chamber 162, in this example, the height of the weir plate 161 and the height of the outlet side opening of the overflow pipe 145 The depth (depth) is set.

  Next, a float sensor or the like detects that the liquid level (liquid level) in the purification unit 110 has reached a predetermined height, and then the exhaust fan 151 is operated so that the exhaust air from the exhaust fan 151 is exhausted. By the action, that is, the suction force of the exhaust fan 151, the contaminated gas containing impurities such as oil is sucked into the intake chamber 120 from the intake port 121. The supply of the liquid from the liquid supply pipe 122 into the intake chamber 120 is continuously performed while the exhaust fan 151 is in operation.

  The gas sucked and introduced into the intake chamber 120 by the suction force of the exhaust fan 151 is introduced into the liquid stored in the bottom of the intake chamber 120 and moves into the purification chamber 130 from the first communication port 131. To do. Then, the gas that has moved to the purification chamber 130 rises after being guided to the central side of the purification chamber 130 by the gas guide plate 132, and a large number of small holes of the bubbling members 133, 134, and 135 in the liquid. Pass upward.

  At this time, as shown in the drawing, a large amount of small-diameter bubbles are generated from the entire surface of the bubbling members 133, 134, and 135, and the refined liquid is scattered in a mist form. Therefore, the gas and the liquid can be brought into close contact (increase the contact area), and impurities such as oil are effectively separated and removed from the gas.

  Thereafter, the gas separated and purified by the impurities moves from the second communication port 141 to the exhaust chamber 140 by the suction force of the exhaust fan 151 and is sucked and exhausted from the exhaust port 144. At this time, the liquid scattered in the purification chamber 130 is prevented from being scattered toward the second communication port 141 by the first liquid scattering prevention plate 136 and the second liquid scattering prevention plate 137. The gas purified by separating the impurities is rectified by the gas rectifying plate 138 disposed in the second communication port 141 and moved to the exhaust chamber 140.

  On the other hand, the liquid containing impurities separated from the gas becomes dirty water and moves from the third communication port 142 to the exhaust chamber 140 by the suction force of the exhaust fan 151. The sewage is sequentially discharged from the overflow pipe 145.

  At that time, since the outlet side opening of the overflow pipe 145 is located in the liquid stored in the liquid storage chamber 162 in the drainage section 160, the sewage is discharged into the liquid in the liquid storage chamber 162. Will be.

  In the drainage section 160, the sewage flows from the liquid storage chamber 162 over the weir plate 161 to the drainage chamber 163 and is discharged out of the machine from a drain pipe 164 piped at the bottom.

  The gas purification apparatus 101 according to the embodiment of the present invention includes the drainage part 160 communicating with the exhaust chamber 140 via the overflow pipe 145, and the liquid stored in the liquid storage chamber 162 of the drainage part 160. The outlet side opening of the overflow pipe 145 is positioned inside, and the sewage is discharged from the outlet side opening of the overflow pipe 145 into the liquid stored in the liquid storage chamber 162, so that it is stored in the liquid storage chamber 162. In this example, the relationship between the height of the liquid surface (liquid level), in this example, the height of the weir plate 161 and the height (depth) of the outlet side opening of the overflow pipe 145 is set. Inflow of outside air from the overflow pipe 145 to the exhaust chamber 140 due to the exhausting action can be easily prevented.

  Therefore, according to the gas purification apparatus 101 in the embodiment of the present invention, since the sewage can be smoothly discharged from the overflow pipe 145, the contaminated gas containing impurities such as oil can be efficiently purified. Can do.

  Further, the gas purification apparatus 101 according to the embodiment of the present invention has a liquid storage chamber 162 and a drainage chamber 163 in which the drainage section 160 is partitioned by a weir plate 161, and the liquid stored in the liquid storage chamber 162. Since the outlet side opening of the overflow pipe 145 is positioned inside, the liquid flowing out from the liquid storage chamber 162 over the barrier plate 161 is discharged from the liquid discharge chamber 163, so that it is stored in the liquid storage chamber 162. With respect to the liquid level (liquid level) of the liquid to be discharged, the outlet of the overflow pipe 145 is maintained at an appropriate height (depth) at which the outside air does not flow into the exhaust chamber 140, and the liquid is discharged to the outside. Can be discharged.

  In the gas purification apparatus 101 according to the above-described embodiment of the present invention, the drainage chamber 163 in the drainage section 160 has an oil content or the like contained in sewage flowing out from the liquid storage chamber 162 over the weir plate 161. A capturing member such as a basket for capturing impurities can also be provided.

  In the gas purification apparatus 101 according to the embodiment of the present invention, in the drainage unit 160, if a trapping member such as a basket is disposed in the drainage chamber 163, a grease trap is provided in the drainage unit 160. Can have a function.

FIG. 3 shows a cross-sectional view of a gas purification device according to another embodiment of the present invention.
The gas purification device 101 shown in FIG. 3 is the same as the gas purification device shown in FIGS. 1 and 2, but the overflow pipe 145 is disposed so as to protrude from the bottom surface of the exhaust chamber 140, and the drainage unit 160 is the purification unit 110. It is arrange | positioned below.

  According to the gas purification device 101 in another embodiment of the present invention, the drainage unit 160 can be provided, for example, in the basement of the installation surface of the purification unit 110, so that the installation space of the gas purification device 101 can be reduced. Space saving.

  In the embodiment of the present invention, the purification unit 110 has a structure having an intake chamber 120, a purification chamber 130, and an exhaust chamber 140. However, by introducing a contaminated gas into the liquid, Other structures may be used as long as impurities such as oil can be separated from the gas. For example, in the gas purification apparatus 101 shown in FIG. 2, the exhaust chamber 140 may be omitted and an overflow pipe may be provided in the purification chamber 130. In that case, an exhaust port 144 may be formed in the purification chamber 130, and the suction port 152 of the exhaust fan 151 may be connected to the exhaust port 144. If the gas can be sucked into the purification chamber 130, the suction chamber 120 may be omitted.

  The gas purification apparatus of the present invention is effective in purifying not only polluted air such as oil smoke generated from a kitchen but also any gas such as exhaust gas from a factory.

  Needless to say, the configuration of the gas purification device of the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the scope of the present invention.

  The gas purification apparatus of the present invention can easily prevent the inflow of outside air from the overflow pipe, and can efficiently purify contaminated gas containing impurities such as oil, so it has extremely high practical value. .

101 Gas Purification Device 110 Purification Unit 120 Intake Chamber 121 Intake Port 122 Supply Pipe 130 Purification Chamber 131 First Communication Port 132 Gas Induction Plate 133 Bubbling Member 134 Bubbling Member 135 Bubbling Member 136 First Liquid Spattering Prevention Plate 137 Second Liquid Spattering Prevention plate 138 Gas flow regulating plate 140 Exhaust chamber 141 Second communication port 142 Third communication port 144 Exhaust port 145 Overflow pipe 146 Water distribution pipe 147 On-off valve 148 On-off valve 150 Exhaust part 151 Exhaust unit 153 Duct 160 Exhaust part 161 Dam plate 162 Liquid storage chamber 163 Drainage chamber 164 Drain pipe

Claims (4)

A purification unit that separates impurities such as oil from the gas by introducing the gas into the liquid, and has a suction port for sucking the gas and an exhaust port for exhausting the gas after the impurities are separated, A purifying part in which an overflow pipe for discharging a liquid containing an impurity separated from a gas and a liquid supply member for supplying the liquid is disposed;
An exhaust section connected to the exhaust port;
A drainage part that communicates with the purification part via the overflow pipe, and in which the outlet side opening of the overflow pipe is positioned in the liquid stored inside;
With
The height of the inlet side opening of the overflow pipe in the purification unit is positioned higher than the liquid level of the liquid stored in the drainage unit, and the height of the inlet side opening of the overflow pipe and the drainage in the purification unit. The liquid level height of the liquid stored in the liquid part is set to a height position relationship in which the liquid stored in the drainage part does not flow backward from the overflow pipe to the purification part due to the exhausting action of the exhausting part. ,
The height of the liquid level stored in the drainage part and the height of the outlet side opening of the overflow pipe are determined by the exhaust action of the exhaust part, so that the air in the drainage part is transferred from the overflow pipe to the purification part. It is set to the relationship of the height position that does not flow backwards,
Due to the exhaust action of the exhaust section, gas is sucked into the purification section from the intake port, impurities are separated by introducing the gas into the liquid, and the gas after separating the impurities is exhausted. While suctioning and exhausting from the mouth, liquid is continuously supplied from the liquid supply member to the purification unit, and liquid containing impurities separated from gas by the purification unit is discharged from the outlet side opening of the overflow pipe to the drainage unit. A gas purifying apparatus, wherein the gas purifier is discharged into a liquid stored in the container.
  The drainage section has a liquid storage chamber and a drainage chamber partitioned by a dam plate, and an outlet side opening of the overflow pipe is positioned in the liquid stored in the liquid storage chamber. The gas purifier according to claim 1, wherein the liquid flowing out beyond the weir plate is discharged from the drainage chamber. The gas purification apparatus according to claim 2, wherein a basket for capturing impurities such as oil contained in the liquid flowing out from the liquid storage chamber over the barrier plate is disposed in the drainage chamber.
The purification unit includes an intake chamber in which the intake port for sucking gas is formed, a purification chamber for separating impurities such as oil from the gas by introducing the sucked gas into the liquid, and after separating the impurities An exhaust chamber in which the exhaust port for exhausting the gas is formed,
The liquid supply member is disposed in the intake chamber, and the overflow pipe is disposed in the exhaust chamber.
In the purification chamber, a bubbling member having a large number of small holes and having substantially the same dimensions as the horizontal section of the purification chamber is disposed in a substantially horizontal state, while the exhaust section is in operation. The liquid is sometimes stored so that the gas introduced into the liquid sometimes passes upward through the small holes of the bubbling member in the liquid,
The purification chamber communicates with the intake chamber via a first communication port formed below the bubbling member, and is formed above the bubbling member so as to allow gas to pass therethrough and the bubbling. The gas purification apparatus according to any one of claims 1 to 3, wherein the gas purification apparatus communicates with the exhaust chamber via a third communication port formed below the member.

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