JP3262710B2 - Chimney - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chimney for discharging exhaust gas containing corrosive gas and water vapor discharged from a refuse incinerator or the like.

[0002]

2. Description of the Related Art Conventionally, when waste containing harmful substances such as industrial waste and household waste is burned and incinerated in a waste incinerator,
Exhaust gas containing a large amount of water vapor is generated in order to inject corrosive gas generated by combustion and cooling water for controlling temperature for the purpose of exhaust gas treatment. It is well known that in a chimney that discharges this into the atmosphere, dew point corrosion occurs due to condensation of water vapor in the low-temperature part, but at this time, dew water and corrosive metals accompany the exhaust gas and are scattered into the atmosphere, It may fall as water mist around the refuse incinerator and cause pollution and corrosion problems.

[0003] In recent years, housing development has progressed to the outback, and many houses have been built around the refuse incinerators that were built in depopulated areas, and because plastics have increased in the garbage, As the combustion temperature rises, the amount of cooling water sprayed into the exhaust gas to control the temperature of the exhaust gas is also increasing, and many small incinerators constructed in rural areas are assumed to operate continuously for 24 hours. Not furnace increases,
The number of furnaces that shut down every weekend and furnaces that shut down every night increased,
Water droplet mist countermeasures have come to be regarded as important due to the increased chance of dew condensation on the exhaust gas duct and the chimney main body inside the chimney.

[0004]

As a countermeasure against dew condensation, it is conceivable that the burner is heated or electric heat is used to actively maintain the chimney or exhaust gas duct and the heat insulating material is strengthened. There is a problem that even if the heat insulating material is strengthened, the effect is limited if the operation stop time is long. As a countermeasure against dew condensation, there is also an operation of dehumidifying and drying exhaust gas. However, a method of once cooling and dehumidifying a large amount of exhaust gas and then raising the temperature is not worth the treatment cost of a refuse incinerator.

The present invention focuses on the fact that by turning exhaust gas, it is possible to separate a central gas flow containing almost no water droplet mist and an outer peripheral multi-phase flow containing many water droplet mist. In particular, it is an object of the present invention to provide a chimney capable of effectively preventing water droplets condensed on the inner surface of the chimney main body and the inner surface of the exhaust gas duct at the time of startup and preventing pollution by water droplet mist.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The invention 請 Motomeko 1 described, the inner surface of the water film adhering to the inner surface
Cylindrical chimney body that discharges exhaust gas that can rise
In addition, the exhaust gas is swirled so that almost no water droplet mist is contained.
Separation into a core gas flow and an outer multiphase flow containing a large amount of water droplet mist
A gas swirling means for separating the gas swirling means, and a downstream side of the gas swirling means.
Water protruding from the inner surface of the chimney body and entrained by the outer multi-phase flow
Captures droplet mist and water film rising along the chimney body
Water droplets that discharge trapped water to the outside of the chimney
Providing mist separation and drainage means,
The step is formed in the chimney body to the width of the thickness of the outer peripheral multiphase flow.
A cross-sectional shape that swells upward and the tip falls down toward the center
A ring-shaped separation plate protruding in the circumferential direction at the
A plurality of drains drilled in the chimney body below the ring-shaped separator
And a water hole.

According to a second aspect of the present invention, there is provided
A cylinder that discharges exhaust gas that can rise along the inner surface of the water film
The exhaust gas is swirled through the chimney main body to remove most of the water droplet mist.
Central gas flow that does not contain water, and the outer periphery that contains a large amount of water droplet mist
A gas swirling means for separating into a multi-phase flow;
On the inner surface of the chimney body on the downstream side of the
Along with a plurality of fins inclined along
Drain holes are made in the lower downstream side of the fins,
Droplet mist entrained in the outer peripheral multiphase flow by the
The water film rising along the surface is captured, and the water film is captured from the drain hole.
First drop mist separation drainage to discharge trapped water to the outside of the chimney
Means is provided downstream of said first water droplet mist separation and drainage means.
Of the thickness of the outer peripheral multiphase flow in the circumferential direction
It is formed to be wide and bulges upwards, and the tip is
While projecting a ring-shaped separation plate with a lower cross-sectional shape,
A plurality of drain holes are provided in the chimney body below the ring-shaped separation plate.
Perforated and entrained in the outer multi-phase flow by the ring-shaped separator
Water mist and water film rising along the inner surface of the chimney body
And lead it out of the chimney body from the drain hole
A second mist separation and discharge means is provided, and the first mist
Drainage of strike separation and discharge means and second mist separation and discharge means
A water collecting tray is placed around the hole and the water collecting tray
A trapped water discharging means for discharging water is provided.

[0008]

[0009]

[0010]

According to the first aspect of the present invention, the gas swirling hand is provided.
The step allows the gas flow to be centered with little water mist
Separation into a gas flow and an outer multiphase flow containing a large amount of water droplet mist
After that, it is entrained in the outer peripheral multiphase flow by the ring-shaped separation plate
Water mist and water film rising along the inner surface of the chimney body
Almost completely over the entire circumference and outside the chimney body.
Can be drained. And the ring-shaped separation plate
Water droplet error by suddenly changing the flow of the outer peripheral multiphase flow.
Effectively separate and collect at the proximal end of the ring-shaped separator.
To condense and drain through drain holes,
Pressure loss of the peripheral multiphase flow can be minimized. Therefore, the exhaust gas
Water droplets generated when the water vapor inside adheres to the inner surface of the chimney body
Of water droplets that can be effectively removed and discharged together with exhaust gas
Can be greatly reduced.

According to the second aspect of the present invention, the second aspect is provided.
According to the invention described above, the gas swirling means causes the gas flow to drop
The central gas flow containing almost no mist and the water droplet mist
After being separated into a multi-phase flow containing a large amount, it is located upstream
Swirling of multi-phase flow around the periphery by means of the first water droplet mist separation and drainage means
There is almost no attenuation of the force and water droplets entrained in the peripheral multiphase flow
Water drops and mist adhere to the inner surface of the chimney body
Water film that is trapped. The second located further downstream
Uses a ring-shaped separation plate by means of water droplet mist separation and drainage
To rapidly change the flow of the multiphase flow around the
Effectively separates the strikes and collects them at the base end of the ring-shaped separator.
It can be condensed and discharged from drain holes,
Pressure loss of the multiphase flow can be minimized. Therefore, in the exhaust gas
Water film adheres to the inner surface of the chimney body
Water droplet mist that can be effectively removed and discharged together with exhaust gas
Can be greatly reduced. The first water droplet mist
By adjusting the mounting angle of the fin of the separation and drainage means,
It is also possible to increase the centrifugal force by increasing the swirling force of the multiphase flow
And the water mist contained in the outer peripheral multiphase flow is
Presses against the inner surface of the chimney to form a liquid film, and more effectively exhaust gas
Water droplets can be removed from
Can be reduced. In addition, the trapped water discharge means
And collects the water drained from the drain hole and drains it from the collecting tray.
As it can be watered, the trapped water drips and smoke
Wastewater can be reliably treated without contaminating the projecting outer surface.
Wear.

[0013]

[0014]

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A chimney according to an embodiment of the present invention will be described with reference to FIGS. In FIG. 1, 1
A cylindrical chimney main body for discharging exhaust gas G discharged from a refuse incinerator. At the lower end of the chimney main body 1, the exhaust gas G is swirled in the chimney main body 1 to form a central flow Gi and an outer peripheral multiphase flow Go. In addition to the gas swirling means 2 for separation, the chimney body 1 is provided with a plurality of water mist separation and drainage means 3A and 3B for separating and discharging water mist from the outer peripheral multiphase flow Go.

The gas swirl means 2 may have a swirl vane provided inside the chimney main body 1, but preferably have as little fluid resistance as possible. In this case, as shown in FIG. The exhaust gas G is blown in the tangential direction of the chimney main body 1 to form a swirling flow. As the exhaust gas G is swirled in the chimney main body 1 as described above, the water droplet mist having a large specific gravity contained in the exhaust gas G is urged to the outer peripheral side by centrifugal force, and the central gas flow Gi containing almost no water droplet mist is generated. Peripheral gas flow G containing a large amount of water droplet mist
o. Further, in the outer peripheral multiphase flow Go, the water droplet mist contacts the inner surface of the chimney main body 1 and solidifies to form a water film Wm, is urged by the outer peripheral multiphase flow Go, and is transported obliquely upward along the inner surface of the chimney main body 1. You.

The water droplet mist separation / drainage means 3A, 3B are first upper and lower two-tiered units arranged at predetermined intervals on the lower upstream side.
It comprises a water droplet mist separation and drainage means 3A and a second water droplet mist separation and drainage means 3B disposed on the upper downstream side.

The first water droplet mist separation and drainage means 3A includes:
As shown in detail in FIG. 2, a plurality of fins 11 projecting in the circumferential direction and inclined along the swirling outer peripheral multiphase flow Go.
And a drain hole 12 formed in the chimney main body 1 at a lower downstream side of the fin 11. These fins 1
1 captures a water droplet mist that is entrained by the outer peripheral multiphase flow Go and rises along the inner surface of the chimney main body 1 and a water film Wm that rises along the inner surface. 1 can be discharged outside.
Further, since the fins 11 are inclined along the outer peripheral multi-phase flow Go, the swirling force of the outer peripheral multi-phase flow Go does not decrease, and the swirling force can be further increased depending on the inclination angle. Therefore, since the swirling force of the outer peripheral multi-phase flow Go does not decrease, it can be disposed in a plurality of stages at predetermined intervals at upper and lower arbitrary positions, and the water droplet mist entrained in the outer peripheral multi-phase flow Go is effectively captured. can do.

At the outer periphery of the drain hole 12, there are provided a ring-shaped water collecting tray 13A constituting the trapped water discharging means and one or more drain pipes 14A connected to the water collecting tray 13A. As a result, the water Wn drained from the drain hole 12A is collected in the water collecting tray 13A, and further, the drain pipe 14A
From the discharge pipe 15 to prevent the contamination of the outer surface of the chimney main body 1.

The second water droplet mist separation / drainage means 3B is shown in FIG.
As shown in detail, a ring-shaped separation plate 21 protruding toward the center from the inner surface of the chimney main body 1 over the entire circumference, and a chimney main body 1 below the ring-shaped separation plate 21 are pierced at regular intervals in the circumferential direction. And a plurality of drain holes 22. The ring-shaped separation plate 21 captures a water droplet mist that is entrained along the outer peripheral mixed-phase flow Go and rises along the inner surface of the chimney body 1 and a water film Wm that rises along the inner surface, and further drains the captured water Wn. It can be led out of the chimney body 1 from the hole 22. Further, the ring-shaped separation plate 21 is set to have a width corresponding to the thickness of the outer peripheral multiphase flow Go, and has a cross-sectional shape in which a front end portion is lowered below the center side. And the water Wn is effectively condensed, and the captured water Wn can be drained from the drain hole 22 using the pressure. Further, the ring-shaped separation plate 21 has a cross-sectional shape that expands upward, and is formed so as to minimize the pressure loss in the flow of the outer peripheral multi-phase flow Go. Due to this aerodynamic characteristic, the flow of the outer peripheral multi-phase flow Go is suddenly changed. With this, the function of separating water mist can be operated.

An annular water collecting tray 13B which constitutes trapped water discharging means, and a water collecting tray 13
B is provided with one or a plurality of drainage pipes 14B, and the trapped water Wn drained from the drainage holes 22 is collected in the water collecting tray 13B, and further, from the drainage pipes 14B to the merged drainage pipes 15B.
To prevent contamination of the outer surface of the chimney main body 1.

In the above configuration, the exhaust gas G discharged from the exhaust gas pipe 4 forms a swirling flow by the gas swirling means 2 at the base 1a of the chimney main body 1, and the exhaust gas G is generated by the centrifugal force.
Is separated into a central gas flow Gi containing almost no water droplet mist and an outer peripheral multiphase flow Go containing a large amount of water droplet mist, and is raised along the chimney body 1. Water droplet mist condenses on the inner surface of the chimney main body 1 with which the outer peripheral multi-phase flow Go comes into contact with the liquid during the ascent, and the liquid mist is pushed by the outer peripheral multi-phase flow Go and rises along the inner surface.

When reaching the lower first water droplet mist separating / discharging means 3A, the outer peripheral multi-phase flow Go collides with the fins 11 and rises along the inner surface of the chimney body 1 and the outer peripheral multi-phase flow G
The water droplet mist entrained by o is captured and guided to the drain hole 12 on the downstream side. Then, the water is drained from the drain hole 12 to the outside of the chimney body 1 by the centrifugal force of the outer peripheral multiphase flow Go, collected in the water collecting tray 13B, and drained from the drain pipe 14B to the combined drain pipe 15. Here, the fin 11 has an outer peripheral multiphase flow G
Since the outer peripheral multi-phase flow Go is inclined along the turning direction of o, the turning force is hardly reduced.

Next, in the upper second water film separation section 3B as well, the liquid film Wm and the water droplet mist are similarly captured from the outer peripheral multiphase flow Go and drained. Further, when reaching the second water droplet mist separation / discharge means 3B, the outer peripheral multi-phase flow Go collides with the ring-shaped separation plate 21 and rises along the inner surface of the chimney main body 1 and the water droplets entrained by the outer peripheral multi-phase flow Go. The mist is effectively captured and guided to the drain holes 22. Then, the water is drained from the drain hole 22 to the outside of the chimney body 1 by the centrifugal force of the outer peripheral multiphase flow Go, collected in the water collecting tray 13B, and drained from the drain pipe 14B to the combined drain pipe 15.

According to the above embodiment, the gas swirling means 2
And the exhaust gas G rising in the chimney body 1 due to the inertial mass difference resulting from the difference in density between the exhaust gas G and the water droplet mist.
And a central gas flow Gi substantially containing no water droplet mist,
It can be separated into the outer peripheral multi-phase flow Go containing a large amount of water droplet mist, and the water film formed by the water droplet mist attached to the inner surface of the chimney main body 1 can be effectively moved upward.
Then, the fins 21 of the second water droplet mist separation / drainage means 3B are provided.
As a result, the rising water film can be guided and drained from the drain hole 22 effectively. This is repeated in two steps, up and down, and at the most downstream position, the water film Wm rising along the inner surface of the chimney main body 1 is reliably captured by the ring-shaped separation plate 11 of the first water droplet mist 3A, and is discharged from the drain hole 12. Can be drained. Therefore, the water droplet mist contained in the exhaust gas G can be almost separated and removed, and the pollution caused by the discharge of the water droplet mist can be prevented. Further, the captured water Wn can be drained without contaminating the outer surface of the chimney main body 1 by the water collecting trays 13A and 13B, the drain pipes 14A and 14B, and the merged drain pipe 15.

Next, an example of an experiment which has reached the above embodiment will be described with reference to FIGS. Experimental Example 1 As shown in FIG.
A fan 32 and a spray nozzle 33 are arranged below a transparent acrylic pipe 31 having a length of 1000 mm, and guide fins 34 for forming a swirling flow at a lower end entrance of the pipe 31.
Was provided. Then, air was blown at about 10 m / sec by the fan 32, and water was sprayed from the spray nozzle 33 at the same time.

As a result, a central air flow Ai containing almost no water droplet mist was found at the center of the pipe 31, and a multiphase air flow Ao containing many water droplet mistakes was found at the outer periphery. In this multi-phase air flow Ao, the pipe 31
A water film is formed on the inner surface of the pipe 31 and is pushed upward by the swirling multi-phase air flow Ao, and is blown upward from the upper end of the pipe 31,
Falling to the surroundings was observed. The moving direction of the water film was obliquely upward along the swirling flow and pressed against the inner surface of the pipe 31 to be transferred. Next, when the same experiment was performed with the guide fins 34 removed, it was found that the water film rising on the inner surface of the pipe 31 was disturbed in some places, and that the water droplet mist also rose at the center of the pipe 31.

Therefore, it was found that the centrifugal force (cyclone effect) of the swirling flow can be used to separate the central air flow Ai containing almost no water droplet mist and the multiphase air flow Ao containing a large amount of water droplet mist. Also pipe 3
It was also confirmed that the water film rising along the inner surface of No. 1 was favorably increased with the gas flow in the swirling flow.

Experimental Example 2 As shown in FIG. 5, L of the experimental apparatus of FIG. 4 protrudes 10 mm toward the center and lowers 10 mm downward at the center of the pipe 31.
A ring-shaped flange 41 having a V-shaped cross section was arranged. And
Air was blown at about 10 m / sec by the fan 32, and water was sprayed from the spray nozzle 33 at the same time, and a swirling flow was formed in the pipe 31 by the guide fins 34.

As a result, the rising water film Wm formed on the inner surface of the pipe 21 collides with the flange 41 and is trapped to form a liquid pool, and the overflowing water droplets are blown upward by the air flow. Was observed.

Further, as shown in FIG. 6, a 1 mm gap 42 was formed in the pipe 31 below the flange 41 in the circumferential direction. As a result, the captured water Wn was seen to flow out of the gap 42 and flow down the outer surface of the pipe 31.
When the gap 42 was further enlarged, water droplets were scattered around with the air flow. Thus, it was confirmed that the water trapped using the centrifugal force of the swirling flow could be sufficiently drained to the outside of the pipe 31.

The ring-shaped flange 4 actually used
The shape 1 needs to be formed in such a size that the pressure loss can be minimized without difficulty in the flow of the exhaust gas in consideration of the aerodynamic characteristics and that the thickness of the outer peripheral multiphase flow protrudes. Therefore, it is preferable that a mist separation effect is exhibited by forming a curved cross section bulging outward and using the inner surface thereof to suddenly change the direction of the colliding outer peripheral multiphase flow.

In this experiment, the ring-shaped flange 4
It was confirmed that the multi-phase airflow Ao almost lost the swirling force on the downstream side of No. 1. Experimental Example 3 As shown in FIG. 7, a plurality of fins 51 having a length of 30 mm and a protrusion amount of 10 mm and inclined at 45 ° along the turning direction in a circumferential direction are provided at an intermediate portion of the pipe 31 of the experimental apparatus of FIG. A drain hole 52 having a diameter of 5 mm was formed in the pipe 31 on the downstream side of the lower surface of the base end of the fin 51 at intervals. Then, air was blown from the bottom of the pipe 31 at about 10 m / sec by the fan 32 and water was sprayed from the spray nozzle 33 at the same time, and a swirling flow was formed in the pipe 31 by the guide fins 34.

As a result, the rising water film Wm formed on the inner surface was guided by the fins 51 and rose, and a part thereof was discharged from the drain hole 52 together with the air flow. As described above, since the water film flows along the corner formed by the base end portion of the fin 51 and the inner surface of the pipe 31, if the water film in this portion is guided to the outside of the pipe 31 and drained, the demist Turned out to be possible.

The multi-phase air flow Ao after passing through the fins 51
It was confirmed that the turning force did not decrease.

[0036]

As described above, the invention of claim 1 is described.
According to the gas swirling means, the gas flow
Includes a center gas flow that is almost free and a lot of water droplet mist
After separation into the outer peripheral multiphase flow, the outer
The water droplet mist entrained in the peripheral multiphase flow and the inner surface of the chimney body
Almost assured capture of the rising water film along the entire circumference
Then, it can be drained to the outside of the chimney body. And
Rapidly change the flow of the multiphase flow around the ring using a ring-shaped separator
This effectively separates the water droplet mist and removes
Collect and condense at the proximal end of the release plate and drain it out of the drain hole.
And the pressure loss of the outer peripheral multiphase flow can be minimized.
Therefore, water vapor in the exhaust gas adheres to the inner surface of the chimney body
Can effectively remove water droplets generated by
The dripping water mist can be greatly reduced
You.

According to the second aspect of the present invention, the gas swirling hand is provided.
The step allows the gas flow to be centered with little water mist
Separation into a gas flow and an outer multiphase flow containing a large amount of water droplet mist
After that, the first water droplet mist separation and drainage means arranged on the upstream side
As a result, there is almost no attenuation of the swirl force of
Water droplet mist entrained in the phase flow and water droplet mist
The strike adheres and captures the water film that is moved up. Further
The second water droplet mist separation and drainage means disposed downstream
Using a ring-shaped separator to rapidly change the flow of the outer multiphase flow.
This effectively separates water droplet mist and removes phosphorus
Collected at the base end of the separation plate and discharged from the drain hole.
Pressure loss of the outer peripheral multi-phase flow can be minimized.
You. Therefore, the water vapor in the exhaust gas accumulates on the inner surface of the chimney body.
The water film generated by the adhesion can be removed effectively,
Water mist discharged together can be greatly reduced.
Wear. Attachment of fins for the first water droplet mist separation and drainage means
By adjusting the angle, the swirling force of the outer multiphase flow is increased and centrifugation is performed.
It is also possible to increase the power
Water mist contained in the stream is pressed against the inner surface of the chimney to form a liquid film
To remove water droplets from exhaust gas more effectively
The mist generated can be greatly reduced. Sa
In addition, the water discharged from the drain hole is
It can be collected and drained from the collecting tray,
Ensures that drained water does not drain and contaminate the chimney outer surface
The wastewater can be treated.

[0038]

[0039]

[0040]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a chimney according to the present invention.

FIG. 2 is an enlarged vertical sectional view showing a first water droplet mist separation / drainage means of the chimney.

FIG. 3 is an enlarged vertical sectional view showing a second water droplet mist separation / drainage means of the chimney.

FIG. 4 is a perspective view showing a test device of Experimental Example 1.

FIG. 5 is a partial cross-sectional view illustrating a test apparatus of Experimental Example 2.

FIG. 6 is a partial cross-sectional view illustrating a modification of the test apparatus of Experimental Example 2.

FIG. 7 is a partial cross-sectional view illustrating a test apparatus of Experimental Example 3.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chimney main body 1a Base 2 Gas swirling means 3A 1st water droplet mist separation and drainage means 3B 2nd water droplet mist separation and drainage means 4 Exhaust gas pipe 11 Ring-shaped separation plate 12 Drainage holes 13A and 13B Water collecting tray (capture drainage means) 14A, 14B Drainage pipe (capture drainage means) 21 Fin 22 Drainage hole G Exhaust gas Gi Central gas flow Go Outer multi-phase flow Wm Water film Wn Captured water

──────────────────────────────────────────────────続 き Continuing on the front page (72) Keizo Nomachi, Inventor Hitachi Zosen Co., Ltd. 5-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka (72) Tsuneo Komi Inventor, Tsuneo Komi Nishikujo, Konohana-ku, Osaka-shi, Osaka 5-3-28, Hitachi Zosen Corporation (56) References JP-A-56-130250 (JP, A) JP-A-3-32918 (JP, U) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) F23L 17/02 F23J 3/04 F23J 15/00

Claims (2)

(57) [Claims] 1. A water film attached to an inner surface can be raised along the inner surface.
The exhaust gas is swirled into a cylindrical chimney body that discharges efficient exhaust gas.
Rotate the center gas flow containing almost no water droplet mist and water
Gas swirl to separate into peripheral multiphase flow containing a large amount of droplet mist
Means provided on the inner surface of the chimney body downstream of the gas swirling means.
The water droplet mist entrained by the outer peripheral multiphase flow and the inner surface of the chimney
The water film that rises and the captured water
Mist separation and drainage means for discharging water to the outside of the chimney.
Is formed with a width equal to the thickness of
Projected in the circumferential direction with a cross-sectional shape that goes down on the center side
A ring-shaped separator, and a chimney below the ring-shaped separator.
A chimney characterized by comprising a plurality of drain holes formed in a main body . 2. A water film attached to the inner surface can be raised along the inner surface.
The exhaust gas is swirled into a cylindrical chimney body that discharges efficient exhaust gas.
Rotate the center gas flow containing almost no water droplet mist and water
Gas swirl to separate into peripheral multiphase flow containing a large amount of droplet mist
Means is provided on the inner surface of the chimney body on the downstream side of the gas swirling means.
When projecting multiple fins inclined along the flow direction of
In both cases, drain holes are drilled at the lower downstream side of these fins.
Water droplets entrained in the outer peripheral multiphase flow by the fins
And the water film rising along the inner surface of the chimney body.
The first drop to discharge water trapped from the drain hole to the outside of the chimney
Mist separation and drainage means, and a chimney body downstream of the first water droplet mist separation and drainage means
In the circumferential direction, it is formed to the width of the thickness of the outer peripheral multiphase flow.
Section that bulges upwards and the tip is lowered down the center
In addition to projecting a ring-shaped separating plate having a
A plurality of drain holes in the chimney body at the bottom of the
Water droplets entrained in the peripheral multiphase flow by the ring-shaped separator
Captures mist and water film rising along the inner surface of the chimney body
And a second mistake led out of the drain hole to the outside of the chimney body.
A first mist separating and discharging means of the chimney body and a second mist separating and discharging means.
A water collecting tray is placed around the outer periphery of the drain hole of the separation and discharge means.
And a trapped water discharging means for discharging water from this collecting tray
A chimney characterized by being provided .