JPH0595622U - Oil mist separator - Google Patents

Abstract

(57) [Summary] [Purpose] In the exhaust duct, a plurality of oil absorption cartridges are arranged in which grid-like passages are divided and pack-like oil absorption materials are arranged in a checkered pattern. Make an oil mist separator with less ventilation resistance by making the pattern reverse to the above. [Structure] The oil absorption cartridges 3 and 4 are alternately arranged in the duct 2. The oil absorption cartridge 3 has a checkered pack-shaped oil absorption material 8 arranged in a passage 7 defined by a lattice 6. The oil absorbing cartridges 3 and 4 are arranged such that the oil absorbing materials 8 are arranged in opposite patterns. The exhaust gas adsorbs and removes the oil mist while passing through the plurality of oil absorption cartridges. Due to this arrangement of the oil absorbing material, the pressure loss in the air duct is small.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil mist separator that captures oil mist in exhaust gas.

[0002]

[Prior Art]

 If exhaust gas containing oil mist is released into the atmosphere, inconveniences such as air pollution and duct contamination due to liquefied oil will occur. Also, in the case of kitchen exhaust, a deodorizing device with an adsorbent is installed at the tip of the duct, and oil mist adheres to the adsorbent, causing clogging and deodorizing action.

[0003]

[Problems to be solved by the device]

 In order to prevent the above state, a filter for capturing oil mist is used. For example, there are those disclosed in Japanese Utility Model Laid-Open No. 4-26010, but these are merely for capturing flowing oil mist by passing through a porous filter medium, and therefore, in order to obtain a sufficient oil mist capturing effect. Has a drawback in that it requires a fine filter, resulting in a large pressure loss and quick clogging.

There is also a method of capturing the exhaust gas by colliding it with the water surface, but the capture efficiency is poor.

[0005]

[Means for Solving the Problems]

 In the oil mist separator according to claim 1, a plurality of oil absorbing cartridges are arranged in a duct, each oil absorbing cartridge is provided with a plurality of parallel passages partitioned in a grid pattern, and a pack-shaped oil absorbing material filled with an oil absorbing resin is provided. It is formed by inserting it in a checkered pattern in the passage, and the oil absorbent material is arranged in a checkered pattern in the reverse pattern.

In the oil mist separator according to a second aspect of the present invention, a plurality of baffle type oil absorption cartridges divided into a blind plate portion and a passage portion are arranged in the duct, and the blind plate portions are alternately arranged on one side and the other side. Each of the passages is arranged in a checkered pattern in a plurality of flat passages formed by dividing it into a lattice, and a pack-shaped oil absorbing material filled with an oil absorbing resin is inserted. It is a thing.

[0007]

[Action]

 These oil mist separators absorb the oil mist contained by the oil absorbing material when passing the exhaust gas. About 1/2 of the duct cross-sectional area is a checkerboard-like arrangement with no oil-absorbing material. When the oil mist separator according to claim 1 goes straight through the passage, the oil-absorbing material arrangement of the next oil-absorbing cartridge has a reverse pattern. Therefore, enter the passage that touches the oil absorbing material. In this manner, the oil mist is repeatedly contacted with the oil absorbing material in this manner, and the oil mist is removed from the exhaust gas. In the oil mist separator according to claim 2, the oil mist passing through the passage regardless of the presence of the oil absorbing material collides with the blind plate of the next baffle type oil absorbing cartridge, and the oil mist is partially liquefied and separated. Drop down. Approximately 1/2 of the flow rate of the remaining oil mist comes into contact with the oil absorbing material when it bypasses and passes through the next passage. The oil mist is removed from the exhaust gas by repeatedly repeating the collision and the contact with the oil absorbing material.

[0008]

【Example】

 1 and 2 show an embodiment of claim 1. The oil mist separator 1 has oil suction cartridges 3 and 4 alternately arranged in an exhaust duct 2. A base end side A of the exhaust duct 2 is connected to a hood (not shown) above the cooking table of the kitchen, and a deodorizing device (not shown) containing an adsorbent is attached to a tip end of the end side B. As shown in FIG. 2, the oil-absorbing cartridge 3 is made of an iron plate, which is a square frame body 5 to be inserted inside the duct 2 and a lattice 6 in which plates are vertically and horizontally combined. The passage 7 is formed. The oil absorbing material 8 is inserted into the passages 7 in the odd-numbered rows from the left in the lower row of the grid 6 and the passages 7 in the even-numbered rows from the left in the even row from the lower side.

The oil-absorbent material 8 is a pack filled with a highly oil-absorbent resin, and, for example, an oleosope pack (trade name, manufactured by Nippon Shokubai Co., Ltd.) or the equivalent thereof is used. The highly oil-absorbent resin has a property of selectively adsorbing according to the type of oil. The oil-absorbing material 8 may be of any size and shape, and a plurality of oil-absorbing materials 8 may be arranged with a gap, and the wire mesh lids 9 are attached to the front and rear surfaces of the grid 6.

The oil-absorbing cartridge 4 has a plurality of passages 7 formed by a lattice 6 in the same frame 5 as the oil-absorbing cartridge 3, and has an odd-numbered stage from the lower side of the lattice 6, an even-numbered column from the left side and an even numbered stage from the lower side. The oil absorbing material 8 is inserted into each of the passages 7 in the odd numbered rows from the left. In this way, the oil absorbing material 8 is arranged in the passage 7 in a checkered pattern, and the oil absorbing cartridges 3 and 4 are arranged in a checkered pattern in which the patterns are opposite to each other. Exhaust air as indicated by arrow C in FIG. 1 passes through the passage 7 in which the oil absorbing material 8 of the oil absorbing cartridge 3 does not exist, and if it goes straight, it flows into the passage 7 in which the oil absorbing material 8 of the oil absorbing cartridge 4 exists.

A space d is provided between the oil absorption cartridges 3 and 4. Exhaust gas not only goes straight through the interval d but also partially bends and enters the passage 7 without the oil absorbing material 8 again, but is repeatedly captured by the oil absorbing material 8 while passing through each oil absorbing cartridge. Therefore, when it is released into the atmosphere at the end of the duct 2, it contains almost no oil mist and does not cause clogging of the adsorbent attached to the deodorant.

FIG. 3 shows an oil mist separator 10 according to a second aspect. In the duct 11, baffle type oil absorbing cartridges 12 and 13 are arranged alternately with a space. The baffle type oil absorbing cartridge 12 is provided with a blind plate 19 and a passage portion 18 in which a plurality of (24 in this example) passages 17 are formed by a lattice 15 in which plates are vertically and horizontally combined in a rectangular frame 16. And a blind plate portion 20. Of the front surface area of the oil absorption cartridge 12, the blind plate portion 20 occupies the lower side and the area is about 55%, and the passage portion 18 occupies the upper side and the area is about 45%.

The oil absorbing material 8 similar to that shown in FIG. 2 is inserted into each passage 17 of the passage portion 18 in a checkered pattern at every step and each row of each passage 17. The oil absorbing material 8 is arranged in the passage 17 with a plurality of voids, and the wire mesh lid 21 is attached to the front surface and the rear surface of the passage portion 18.

The baffle type oil absorption cartridge 13 is provided with a blind plate portion 30 having a blind plate 29 in an upper portion in a frame 26 and a passage portion 28 having a lattice 25 in a lower portion. The blind plate portion 30 and the passage portion 28 are similar to the blind plate portion 20 and the passage portion 18, respectively. A plurality of passages 27 are formed in the passage portion 28, and the oil absorbing material 8 is arranged in a checkered pattern in the passage portion 28.

The oil-containing exhaust gas entering the oil separator 10 is sequentially contacted with the oil absorbing material 8 in the passages 17 and 27 in the passage portions 18 and 28 to remove the oil mist, as in the case of FIGS. 1 and 2. Is. The passages 18 and 28 are vertically arranged in the duct 11 alternately, and the exhaust gas that collides with the blind plate portions 20 and 30 separates a part of the oil mist into droplets by the collision and changes the direction. It passes through the passages 18, 28 and is adsorbed by the oil absorbing material 8.

When the oil absorbing material 8 swells by adsorbing the oil mist, the space between the oil absorbing materials 8 is narrowed, so that the flow rate is sequentially limited and the ratio of the flow rate through the passages 17 and 28 where the oil absorbing material 8 is not present. Therefore, the oil absorbing material 8 is replaced at an appropriate time.

As the oil-absorbent resin, there are liquid ones such as granular water slurry (for example, trade name Oleosorb SL) or emulsion (for example trade name Oleosorb EM). The resin is stored in a dish-shaped oil-absorbing resin tank provided at the bottom of the duct, and a baffle plate is hung above it to bend the exhaust flow direction downward by the baffle plate and collide with the liquid surface of the oil-absorbing resin. It is possible to adsorb the oil mist in the exhaust gas.

In this case, since the exhaust gas collides with the baffle plate and the oil mist is made into droplets and flows down, the oil-absorbent resin also has the function of adsorbing and trapping this. This will prevent oil mist from dissipating and facilitate the treatment of the trapped oil.

[0019]

[Effect of the device]

 The oil mist separator of the present invention arranges the pack-shaped oil absorbing material in a checkerboard-like pattern in a checkerboard pattern to reduce the pressure loss in the exhaust duct and selectively depending on the oil content in the exhaust gas. Since it absorbs mist, it has a great effect of removing oil mist. In addition, the captured oil becomes easy.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of an embodiment of claim 1.

FIG. 2 is a diagram showing an oil absorption cartridge according to an embodiment of claim 2;

FIG. 3 is a diagram showing a baffle type oil absorption cartridge according to an embodiment of claim 2;

[Explanation of symbols]

 2, 11 Exhaust duct 3, 4 Oil absorption cartridge 5, 16, 26 Frame body 6, 15, 25 Lattice 8 Oil absorption material 12, 13 Baffle type oil absorption cartridge 18, 28 Passage part 20, 30 Blind plate part

Claims (2)

[Scope of utility model registration request] 1. An oil absorbing cartridge is formed by partitioning a frame body into a grid shape to provide a plurality of parallel passages, and inserting a pack-shaped oil absorbing material filled with an oil absorbing resin into the passages in a checkered pattern arrangement. And an oil mist separator in which a plurality of oil absorption cartridges are arranged in a duct so that the arrangement of the oil absorption material is sequentially in a checkered pattern of an inverse pattern. 2. The oil absorbing property is divided into a blind plate portion and a passage portion having a cross-sectional area smaller than that of the blind plate portion in the transverse direction, and the passage portion is divided into a lattice shape to provide a plurality of parallel passages. Packed oil-absorbing material filled with resin is inserted into the passage in a checkered pattern to form a baffle-type oil-absorbing cartridge, and a plurality of baffle-type oil-absorbing cartridges are arranged in the duct. An oil mist separator that is arranged alternately on one side and the other side.