JPH0619951Y2 - Sprinkler for cooling the outer wall of the chimney - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a water sprinkler for cooling, which is mainly used for ships, and more particularly to a water sprinkler for cooling the outer wall of a chimney designed to reduce inconvenience due to overheating of the outer wall of the chimney. .

[Conventional technology]

Conventionally, a chimney of a ship has a small size due to size restrictions with respect to the temperature of exhaust gas and the amount of exhaust gas, and overheating of the chimney outer wall may be a problem. In particular, there is a water sprinkling system for cooling the outer wall of the chimney of a ship as shown in FIG.

That is, the sprinkler cover 7 that covers almost the entire surface of the chimney outer wall 3 is attached at a predetermined distance from the outer surface 3a of the chimney outer wall 3,
A water supply line 6b is provided near the top portion thereof, and a water supply line 6a is provided on the top plate 4 of the chimney E.

Then, the outer surface 3a of the chimney outer wall 3 is cooled by water spray from the water spray nozzles 2b formed on the water supply line 6b, and the upper surface of the top plate 4 is cooled by water spray from the water spray nozzles 2a formed on the water supply line 6a. Is configured to.

[Problems to be solved by the device]

By the way, in the conventional sprinkler for cooling the outer wall of the chimney as described above, since seawater is generally used to sprinkle the outer side 3a of the outer wall 3 of the chimney, the sprinkled water splashes from the top of the water spray cover 7 to the vicinity of the chimney E. There is a problem that it will affect the installed equipment (not shown) and will cause adverse effects such as salt damage, and a sprinkler cover.
Since 7 is attached to almost the entire surface of the chimney outer wall 3, there is a practical problem that the weight becomes excessive.

The present invention is intended to solve these problems, and in addition to preventing water splashing to the outside of the chimney, a short cover is provided only on the top of the chimney to reduce the weight. An object of the present invention is to provide a water sprinkler for cooling the outer wall of the chimney, which can sufficiently reduce the temperature of the outer wall of the chimney by such a cooling action.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the sprinkler for cooling the outer wall of the chimney of the present invention has a sprinkling nozzle mechanism arranged toward the outer wall of the chimney at the upper part of the outer wall of the chimney, and has a water supply system for the nozzle mechanism. An upper sprinkler cover for covering the upper part of the outer wall of the chimney and the nozzle mechanism, and a plurality of support legs extending downward from a lower edge of the upper sprinkler cover to support the upper sprinkler cover are provided. It is characterized by that.
(Claim 1) A plurality of partition plates may be provided to partition a space between the upper water spray cover and the outer wall of the chimney to form a flow path for water spray from the nozzle mechanism. (Claim 2) Further, when the chimney outer wall is formed in a rectangular tube shape, it is desirable that the support leg is arranged so as to cover the ridge portion of the rectangular tube-shaped chimney outer wall. (Claim 3) Furthermore, in the sprinkler outer wall cooling sprinkler of the present invention, the cooling water is supplied to the upper portion of the outer wall of the chimney, the cover covering the upper portion of the outer wall of the chimney, and the space between the cover and the outer wall of the chimney. A cooling water supplied to the space through the water supply system between the lower edge of the cover and the outer surface of the outer wall of the chimney to flow down in a film shape along the outer surface of the outer wall of the chimney. The feature is that a narrow gap is formed. (Claim 4) [Operation] In the water spray device for cooling the chimney outer wall according to claim (1) of the present invention, the water spray nozzle mechanism is provided on the upper portion of the chimney outer wall toward the outer wall of the chimney. An upper sprinkler cover having a water supply system to the nozzle mechanism and covering the upper part of the chimney outer wall and the nozzle mechanism, and a plurality of pieces extending downward from the lower edge of the upper sprinkler cover to support the upper sprinkler cover. Since the support legs of the sprinkler cover are provided, the sprinkler cover prevents the sprinkler from splashing to the outside while reducing the weight of the sprinkler cover.
The temperature of the outer wall of the chimney is reduced.

And, as in the water spray device for cooling the outer wall of the chimney according to claim (2), a plurality of partition plates that partition the space between the upper water spray cover and the outer wall of the chimney to form the downflow path of the water spray from the nozzle mechanism. Since the partition plate prevents the entrainment of the air flow into the space, the water splash from the space can be prevented.

Further, as in the sprinkler for cooling the outer wall of the chimney of claim (3),
When the chimney outer wall is formed in a rectangular tube shape, the support legs are arranged so as to cover the ridge portion of the square tube-shaped chimney outer wall, and thus the ridge portion of the rectangular tube-shaped chimney outer wall. The water spray film is prevented from peeling off from the water spray, and the generation of water spray is prevented.

Further, in the sprinkler for cooling the outer wall of the chimney according to claim (4), a water supply for supplying cooling water to the upper part of the outer wall of the chimney, a cover covering the upper part of the outer wall of the chimney, and a space between the cover and the outer wall of the chimney. A narrow gap between the lower edge of the cover and the outer surface of the chimney outer wall, which allows the cooling water supplied to the space via the water supply system to flow down in a film shape along the outer surface of the chimney outer wall. Therefore, the cooling water supplied into the space cools the chimney outer wall efficiently while flowing down like a film along the outer surface of the chimney outer wall from the gap, whereby the chimney outer wall is formed. The temperature will be significantly reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
1 and 2 show a water sprinkler for cooling the outer wall of a chimney as a first embodiment of the present invention. FIG. 1 is a perspective view showing the structure of the main part, and FIG. 2 is II- of FIG. FIG. 2 is a sectional view taken along line II.

As shown in FIG. 1 and FIG. 2, in the chimney E of a ship, a cylindrical upper sprinkler cover 27 is provided so as to cover only the upper part of the chimney outer wall 23. The plurality of support legs 27a attached to the hull A extending downward from the lower edge portion of the
To support.

Then, in the surrounded by the upper sprinkler cover 27 and a chimney outer wall 23 space, the water supply line 21 is formed as an annular pipe mounted so as to surround the periphery of the chimney outer wall 23, in the water supply line 21 A large number of water spray nozzles are formed so that water can be sprayed toward the chimney outer wall 23, and a nozzle mechanism is constituted by these.

Further, a water supply system (not shown) capable of supplying water is connected to the water supply line 21 .

In addition, between each support leg 27a and the chimney outer wall 23, the first
As shown in the figure, a vertical reinforcing member 31 is provided to prevent vibration and blow-by of wind.

With the above configuration, in the first embodiment of the present invention, when water is supplied from the water supply system to the water spray nozzle 21 , the water is supplied from the water spray nozzle to the chimney outer wall 2 inside the upper water spray cover 27 as a windbreak.
The cooling water discharged toward 3 flows down while forming a water film along the chimney outer wall 23 and directly cools the chimney outer wall 23. Therefore, the heat radiated from the chimney outer wall 23 to the outside can be sufficiently reduced.

Further, as described above, the sprinkle cover 27 functions as a windbreak to prevent the generation of splashes of the cooling water, so that the adverse effects of the splashes on the equipment in the vicinity can be prevented.

FIG. 3 is a perspective view showing a water sprinkler for cooling the outer wall of the chimney as a second embodiment of the present invention. In the second embodiment, in the marine chimney E formed in the rectangular tubular shape of the chimney outer wall 43,
A rectangular tube-shaped upper sprinkling cover 47 is provided so as to cover the upper part of the chimney outer wall 43, and extends downward from the lower edge of the upper sprinkling cover 47 and is attached to the hull supporting legs 47a.
However, the upper sprinkling cover 47 is supported while being arranged so as to cover the ridge of the outer wall 43 of the chimney having a rectangular tube shape.

Then, in the space surrounded by the upper sprinkling cover 47 and the chimney outer wall 43, the water supply line 41 is connected to the chimney outer wall 4 having a rectangular tubular shape.
3 is attached so as to surround the chimney outer wall 43, and the water supply line 41 is provided with a large number of water sprinkling nozzles so that water can be sprayed toward the chimney outer wall 43.
These constitute a nozzle mechanism.

A water supply system (not shown) is connected to the water supply line 41.

A vertical reinforcing member (not shown) is provided between each support leg 47a and the chimney outer wall 43, and this corresponds to the vertical reinforcing member 31 provided in the first embodiment.

The vertical reinforcing material has a function of preventing vibration, and also prevents the cooling water film from peeling off due to the turbulence of the air flow at the ridge portion of the outer wall 43 of the chimney tube to generate cooling water splashes. It has a function.

With the above configuration, in the second embodiment of the present invention, when water is supplied from the water supply system to the water supply line 41, the cooling water discharged from the sprinkling nozzle toward the outer wall 43 of the chimney has the outer wall of the rectangular tube. While flowing a water film along each side of 43,
The chimney outer wall 43 is directly cooled.

Therefore, the heat radiated from the chimney outer wall 43 to the outside can be sufficiently reduced.

Further, as described above, the action of the water spray cover 47 as a windbreak prevents the generation of splashes of the cooling water, thereby preventing the adverse effects of the splashes on nearby devices.

Next, referring to FIGS. 4 and 5, a sprinkler outer wall cooling sprinkler as a third embodiment of the present invention will be described. FIG. 4 is a perspective view thereof, and FIG. 5 is a sectional view taken along line VV of FIG. It is a figure.

As shown in FIG. 4, in the chimney E of the ship, a cylindrical upper sprinkling cover 57 is provided so as to cover the upper part of the chimney outer wall 53, and from the lower edge of the upper sprinkling cover 57. A plurality of support legs 57a extending downward and attached to the hull A support the upper watering cover 57.

Then, in the space surrounded by the upper sprinkling cover 57 and the chimney outer wall 53, the water supply line 51 is formed as an annular pipe attached so as to surround the periphery of the chimney outer wall 53. A large number of water spray nozzles are formed so that water can be sprayed toward the chimney outer wall 53, and a nozzle mechanism is constituted by these.

A water supply system (not shown) is connected to the water supply line 51.

A vertical reinforcing member 61 is provided between each support leg 57a and the chimney outer wall 53 to prevent vibration, as shown in FIGS.

Further, in the space surrounded by the upper sprinkling cover 57 and the chimney outer wall 53, the partition plate 6 that divides the space into a plurality of parts.
3 are provided in parallel in the vertical direction.

With the above configuration, in the third embodiment of the present invention, when water is supplied from the water supply system to the sprinkler nozzle 51, inside the upper sprinkler cover 57 as a windbreak, from the jet outlet of the sprinkler nozzle 51 to the chimney outer wall 53. The cooling water is discharged toward the target.

Further, in the space surrounded by the upper sprinkling cover 57 and the chimney outer wall 53, the partition plates 63 are provided in parallel in the vertical direction so as to divide the space into a plurality of parts. It is possible to prevent the cooling water discharged from the water spray nozzle from scattering around the space.

Therefore, the outer wall 53 of the chimney from the ejection port of the water spray nozzle 51
The cooling water discharged toward the water flows down along the chimney outer wall 53 while forming a water film, directly cools the chimney outer wall 53, and sufficiently reduces the heat radiated from the chimney outer wall 53 to the outside. be able to.

In addition, as described above, since the spray cover 57 functions as a windbreak to prevent the generation of splashes of the cooling water, it is possible to prevent the adverse effects of the splashes on the equipment in the vicinity thereof.

The fourth embodiment of the present invention shown in FIG. 6 is the second embodiment shown in FIG.
In the water spray device for cooling the chimney outer wall of the embodiment, a partition plate 83 is provided so as to correspond to the partition plate 63 in the case of the third embodiment shown in FIGS. Reference numeral 73 denotes a prismatic outer wall of the chimney, 77 is a sprinkling cover, 77a is a support leg for covering the ridge of the outer wall 73 of the chimney, and 81
Indicates a watering nozzle.

Therefore, in the fourth embodiment shown in FIG.
It is possible to obtain a working effect in which the working effect of the third embodiment is added to the working effect of the embodiment.

Further, in the fifth embodiment of the present invention shown in FIG. 7, a water sprinkling cover 97 for covering the upper part of the chimney outer wall 93 is provided on the upper part of the chimney outer wall 93 of the marine chimney E, and the water sprinkling cover 97 and the chimney outer wall are provided. A water supply line 91 for supplying cooling water to the space between the water tanks 93 and 93 is provided, and a large number of water spray nozzles 92 are formed so that water can be sprayed toward the chimney outer wall 93.

Then, the lower edge portion 97a of the sprinkling cover 97 and the chimney outer wall 93
A narrow gap 98 is formed between the outer surface of the chimney and the outer surface of the chimney outer wall 93 so that the cooling water discharged from the sprinkler nozzle toward the outer wall 93 of the chimney flows down along the outer surface of the outer wall 93 of the chimney as a water film.

With the above-described configuration, in the fifth embodiment, the water supply line 9
The cooling water supplied into the space by 1 flows down in a film shape along the outer surface of the chimney outer wall 93 through the gap 98,
The chimney outer wall 93 is efficiently cooled, and the heat radiated from the chimney outer wall 93 to the outside is significantly reduced.

[Effect of device]

As described above in detail, according to the water spray device for cooling the outer wall of the chimney of the present invention, the following effects and advantages are obtained.

(1) In addition to having a sprinkling nozzle mechanism arranged on the upper part of the outer wall of the chimney toward the outer wall of the chimney, and having a water supply system to the nozzle mechanism, an upper sprinkler covering the upper part of the outer wall of the chimney and the nozzle mechanism. Since a cover and a plurality of support legs that extend downward from the lower edge of the upper sprinkling cover to support the upper sprinkling cover are provided, it is possible to reduce the weight of the sprinkling cover while sprinkling water to the outside. Prevent with a watering cover,
Dissipation of heat from the chimney outer wall to the outside is reduced.

(2) By providing a plurality of partition plates that partition the space between the upper water spray cover and the outer wall of the chimney to form the downflow path of the water spray from the nozzle mechanism, the entrainment of airflow into the space can be prevented. Since it is prevented by the partition plate, water spray from the space is also prevented.

(3) When the outer wall of the chimney is formed in a rectangular tube shape,
By disposing the support leg so as to cover the ridge portion of the outer wall of the rectangular tube-shaped chimney, it is possible to prevent the water spray film from peeling off from the ridge portion of the outer wall of the rectangular tube-shaped chimney stack. Is prevented from occurring.

(4) The upper part of the outer wall of the chimney has a cover for covering the upper part of the outer wall of the chimney, and a water supply system for supplying cooling water to the space between the cover and the outer wall of the chimney. Since a narrow gap is formed between the outer surface of the outer wall of the chimney and the cooling water supplied to the space through the water supply system along the outer surface of the outer wall of the chimney, a narrow gap is formed. Cooling water efficiently cools the outer wall of the chimney while flowing down in a film shape from the gap along the outer surface of the outer wall of the chimney, thereby significantly reducing the heat radiated from the outer wall of the chimney to the outside. Become so.

[Brief description of drawings]

1 and 2 show a water sprinkler for cooling the outer wall of a chimney as a first embodiment of the present invention. FIG. 1 is a perspective view thereof, and FIG. 2 is a sectional view taken along the line II-II of FIG. FIG. 3 is a perspective view showing a sprinkler outer wall cooling water sprinkler as a second embodiment of the present invention, and FIGS. 4 and 5 show a chimney outer wall cooling water sprinkler as a third embodiment of the present invention. FIG. 4 is a perspective view thereof, FIG. 5 is a sectional view taken along the line VV of FIG. 4, and FIG. 6 shows a water spray device for cooling the outer wall of the chimney as a fourth embodiment of the present invention. FIG. 7 is a perspective view showing a sprinkler for cooling the outer wall of the chimney as a fifth embodiment of the present invention, and FIG. 8 is a longitudinal cross section showing a sprinkler for cooling the outer wall of the chimney in the related art. It is a figure. 2a, 2b ... water spray nozzle, 3 ... chimney outer wall, 4 ... top plate, 6a, 6b ... water supply line, 7 ... water spray cover, 8
…… Gutter, 9 …… Drain pipe, 21 …… Water supply line, 23 ……
Chimney outer wall, 27 ... Sprinkle cover, 27a ... Support legs, 2
8: Space, 31: Vertical reinforcement, 41: Water supply line,
43 ... chimney outer wall, 47 ... sprinkling cover, 47a ... support leg, 51 ... water supply line, 53 ... chimney outer wall, 57 ...
… Sprinkling cover, 57a …… Supporting legs, 61 …… Vertical reinforcement,
63 ... Partition plate, 73 ... Chimney outer wall, 77 ... Sprinkling cover, 77a ... Chimney outer wall, 81 ... Water supply line, 83 ...
... Partition plate, 91 ... Water supply line, 92 ... Sprinkling nozzle,
93 ... chimney outer wall, 97 ... sprinkling cover, 97a ... lower edge, 98 ... gap, A ... hull, B ... water film, E ...
chimney.

Claims (4)

[Scope of utility model registration request] 1. A sprinkler nozzle mechanism is provided on the upper part of the chimney outer wall, and a water supply system to the nozzle mechanism is provided, and an upper sprinkler cover for covering the upper part of the chimney outer wall and the nozzle mechanism, and the upper sprinkler cover. A water spray device for cooling the outer wall of the chimney, comprising a plurality of support legs extending downward from a lower edge portion and supporting the upper water spray cover. 2. A plurality of partition plates for partitioning a space between the upper sprinkling cover and the outer wall of the chimney to form a flow path for sprinkling water from the nozzle mechanism. The sprinkler for cooling the outer wall of the chimney described in 1). 3. The chimney outer wall is formed in a rectangular tube shape, and the support leg is arranged so as to cover a ridge portion of the rectangular tube-shaped chimney outer wall. Water sprinkler for cooling the outer wall of the chimney. 4. A lower edge portion of the cover, the upper part of the outer wall of the chimney having a cover for covering the upper part of the outer wall of the chimney, and a water supply system for supplying cooling water to a space between the cover and the outer wall of the chimney. Between the outer surface of the chimney outer wall and the outer surface of the chimney outer wall, a narrow gap is formed to allow the cooling water supplied to the space via the water supply system to flow down in a film shape along the outer surface of the chimney outer wall. Sprinkler for cooling the outer wall of the chimney.