JP3129409B2 - Inboard bilge water treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating bilge water generated in a ship, and more particularly to an apparatus for concentrating bilge water.

[0002]

2. Description of the Related Art Conventional onboard bilge water treatment systems include:
FIGS. 4 and 5 show the respective structures. FIG.
In the conventional apparatus shown in (1), a bilge water concentration tank 1 and a concentrated bilge water storage tank 4t are separately provided, and both tanks 1 and 4t are communicated with a concentrated bilge water delivery pipe 4.

[0003] The tank 1 is filled with bilge water by a pipe 3b.
Bilge water in tank 1 is pumped through pump 3
P circulates through the bilge water circulation pipe 3, and at this time, bilge water is sprayed into the tank 1 by the bilge water spray pipe 3a.

A heat exchanger 2 is provided below the bilge water spray pipe 3a, and the bilge water sprayed is heated by heat exchange with a high-temperature fluid flowing through the pipe 2a in the heat exchanger 2. The vaporization of the contained water is promoted, and the bilge water thus concentrated is guided from the bottom of the tank 1 through the concentrated bilge water delivery pipe 4 to the concentrated bilge water storage tank 4t.

Further, in order to discharge the water vapor while promoting the evaporation of the water in the bilge water in the tank 1, the blower 5f is provided with air through the blower pipe 5b into the tank above the liquid level in the lower part of the tank 1. The water vapor in the tank 1 is discharged to the outside of the tank through the discharge unit 5c while the droplets are removed by the demister 6 in this manner.

[0006] The concentrated bilge water in the concentrated bilge water storage tank 4t is discharged at a port through a discharge pipe 3c below the tank 4t, and sent to a land-based treatment facility.

The conventional apparatus shown in FIG. 5 is also divided into a bilge water concentration tank 1 and a concentrated bilge water storage tank 4t similarly to the conventional apparatus shown in FIG. 4, and has the same concept as a whole. 5, the same reference numerals as those in FIG. 4 denote the same members. In the apparatus shown in FIG. 5, a recirculation pipe 7 is also provided for the concentrated bilge water storage tank 4t, and a mixer 7a is interposed in the pipe 7.

[0008]

In the conventional bilge water treatment apparatus described above, the bilge water concentration tank 1 and the concentrated bilge water storage tank 4t are divided into two parts. The capacity of the storage part at the bottom of the tank is limited, and therefore, in the apparatus shown in FIG. 4, sludge or salt may be deposited on the bottom of the tank 1 and the pipe may be blocked. Therefore, the transfer from the bilge water concentrating tank 1 to the concentrated bilge water storage tank 4t has to be performed at an early stage, and accordingly, as shown in FIG. A pipe for circulating water is also required, so that the effect of separating the two tanks 1 and 4t is eventually lost, resulting in an increase in the size and complexity of the device, making it difficult to equip a small boat. .

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems in the conventional apparatus, and provides a bilge water concentration section and a concentrated bilge water storage section in a single tank to reduce the size of the apparatus. It is therefore an object of the present invention to provide an onboard bilge water treatment apparatus that can efficiently concentrate bilge water and efficiently discharge water vapor evaporated from bilge water from a discharge section at the top of a tank. I do.

[0010]

In order to solve the above-mentioned problems, an inboard bilge water treatment apparatus according to the present invention has a bilge water concentrating unit in the upper half of a single tank and a bilge water concentrating unit in the lower half of the tank. A bilge water supply pipe is connected to the middle part of the tank with a concentrated bilge water storage part, and bilge water taken out from the lower part of the tank via a pump is taken into the upper part of the tank and is taken into the tank. A bilge water circulation system connected to the bilge water spray tube, a heat exchanger disposed below the bilge water spray tube and heating the bilge water sprayed from the bilge water spray tube, a heat exchanger and a tank A vent pipe connected to the tank between the inner liquid surface and a throttle damper capable of adjusting the amount of air flowing into the tank by the vent pipe; and a gas in the tank from the top of the tank. The demister And the induced draft fan connected to the discharge portion of the tank top in order to attract the discharge through is characterized by being provided.

In the above-mentioned bilge water treatment apparatus according to the present invention, the bilge water concentrating section and the concentrated bilge water storing section are provided in the upper half and the lower half of a single tank, respectively. A bilge water circulation system that takes in the bilge water taken out from the part via a pump into the upper part of the tank and sprays it from the bilge water spray pipe, and bilge water sprayed from the bilge water spray pipe below the spray pipe. When bilge water is concentrated by the action of the heat exchanger to be heated, a sufficient volume of the concentrated bilge water storage section exists below the bilge water concentration section in the tank. There is no clogging of the piping due to the accumulation of salts.

The water vapor generated from the bilge water sprayed in the tank is appropriately pushed up by the air flowing into the tank at an appropriate flow rate from the ventilation pipe with the throttle damper, and the liquid mixed at the top of the tank via the demister. Drops are removed and the air is efficiently attracted and discharged by the induction ventilator.

As described above, according to the onboard bilge water treatment apparatus of the present invention, the entire apparatus is reduced in size by the tank configuration integrally including the bilge water concentration section and the concentrated bilge water storage section, and the throttle damper is provided. is as discharge efficiency of the evaporation water from the bilge water is increased by the cooperative action of the uptake and the induced draft fan attached, realization of possible compact high-performance device equipped in small vessels is expected.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An onboard bilge water treatment apparatus according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram schematically showing the overall configuration.

As shown in FIG. 1, the onboard bilge water treatment apparatus of this embodiment includes a bilge water concentrating section A in the upper half of a single tank T and a condensing bilge water in the lower half of the tank T. A water reservoir B is provided.

A bilge water supply pipe 3b is connected to an intermediate portion of the tank T. The bilge water supply pipe 3b is taken out from the lower portion of the tank T via a valve a, a pump 3P driven by a motor 3M, and a valve b from the lower portion of the tank T. A bilge water circulation pipe 3 is provided for connecting the bilge water to the bilge water spray pipe 3a in the tank T, thereby forming a bilge water circulation system.

In the tank T, a heat exchanger 2 for heating the bilge water sprayed from the spray pipe 3a is disposed below the bilge water spray pipe 3a. A heat medium such as a fluid or a steam containing exhaust heat of an inboard engine flows through the pipes via pipes 2a and 2b.

Further, a ventilation pipe 5a with a throttle damper 5e is provided between the heat exchanger 2 and the liquid level S in the tank and is connected to the tank T. The gas inside the tank T is passed through the demister 6 Through the discharge portion 5c at the top of the tank T, the air is drawn and discharged by an induction ventilator (including an induction ejector fan) 5d connected to the discharge portion 5c.

Then, the concentrated bilge water storage section B of the tank T
Is discharged as appropriate through a concentrated bilge water discharge pipe 3c via a valve a, a pump 3P and a valve c.

In the above-described bilge water treatment apparatus of the present embodiment, the bilge water concentration section A and the concentrated bilge water storage section B are provided in the upper half and the lower half of the single tank T, respectively. A bilge water circulation system in which bilge water taken out from a lower part of the tank T via a pump 3P is introduced into an upper part of the tank T via a pipe 3 and sprayed from a bilge water spray pipe 3a, and a bilge water spray pipe 3a. When the bilge water is concentrated by the action of the heat exchanger 2 which heats the bilge water sprayed from the lower part of the scatter pipe 3a, there is a sufficient volume below the bilge water concentration part A in the tank T. The concentrated bilge water storage section B does not cause clogging of pipes (pipes including valves) due to accumulation of sludge and salts as in the related art.

The water vapor generated from the bilge water sprayed into the tank T is appropriately pushed up by the air flowing into the tank T from the ventilation pipe 5a with the throttle damper 5e at an appropriate flow rate. The droplets are removed via the air outlet 5c, and are efficiently attracted and discharged from the discharge unit 5c by the induction ventilator 5d.

As described above, according to the onboard bilge water treatment apparatus of the present embodiment, the entire apparatus is reduced in size by the configuration of the tank T integrally including the bilge water concentration section A and the concentrated bilge water storage section B. In addition, the efficiency of discharging the evaporated water from the bilge water can be enhanced by the cooperation of the ventilation pipe 5a with the throttle damper 5e and the induction ventilator 5d, and a small high-performance device that can be mounted on a small boat. Can be realized.

FIG. 2 (front view) and FIG. 3 (side view) show a specific example of the inboard bilge water treatment apparatus schematically shown in FIG. 1. In FIGS. The members are shown. In the apparatus shown in FIGS. 2 and 3, the liquid level indicator 9 and the operation panel 10 are provided, and the induction ventilator 5d is provided integrally, so that the entire apparatus is made compact. The tank T is provided with an overflow outlet 8.

[0024]

As described above in detail, the following effects can be obtained according to the bilge water treatment apparatus for ships of the present invention. (1) A bilge water concentration section and a concentrated bilge water storage section are provided in the upper half and lower half of a single tank, respectively, so that bilge water taken out from the lower part of the tank via a pump is The bilge water circulation system, which takes in the upper part of the bilge water spray pipe and sprays it from the bilge water spray pipe, and the heat exchanger that heats the bilge water sprayed from the bilge water spray pipe below the spray pipe, acts on the bilge water. When the concentration is performed, there is a sufficient volume of the concentrated bilge water storage section below the bilge water concentration section in the tank, so that the pipe does not become blocked due to the accumulation of sludge and salts as in the conventional case. . (2) The water vapor generated from the bilge water sprayed in the tank is properly pushed up by the air flowing into the tank from the ventilation pipe with the throttle damper at an appropriate flow rate, and the droplets are removed via the demister at the tank top. As a result, the air is efficiently induced and discharged by the induction ventilator. (3) The entire device is downsized due to the tank configuration that integrates the bilge water concentrating unit and the concentrated bilge water storage unit. It is expected that the efficiency of evaporating water discharge will be improved, and that a small and high-performance device that can be mounted on a small boat will be realized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram schematically showing the overall configuration of an onboard bilge water treatment apparatus as one embodiment of the present invention.

FIG. 2 is a front view showing a specific example of the apparatus shown in FIG.

FIG. 3 is a side view of the apparatus of FIG. 2;

FIG. 4 is an explanatory view schematically showing an example of a conventional onboard bilge water treatment apparatus.

FIG. 5 is an explanatory view schematically showing another example of a conventional inboard bilge water treatment apparatus.

[Explanation of symbols]

 Reference Signs List 1 tank 2 heat exchanger 2a pipe 3 bilge water circulation pipe 3a bilge water spray pipe 3b bilge water supply pipe 3c concentrated bilge water discharge pipe 3P pump 3M motor 4 concentrated bilge water delivery pipe 4t concentrated bilge water storage tank 5a ventilation pipe 5b Blower tube 5c Discharge unit 5d Induction ventilator 5e Throttle damper 5f Blower 6 Demister 7 Recirculation pipe 7a Mixer 8 Overflow outlet 9 Liquid level indicator 10 Operation panel a to c Valve A Bilge water concentration unit B Concentrated bilge water storage unit S tank Inner liquid level T tank

Continued on the front page (72) Inventor Yoshiaki Tsuji 1-33-38 Nonakakita, Yodogawa-ku, Osaka Volcano Co., Ltd. (72) Inventor Takashi Kurimoto 1-338 Nonakakita, Yodogawa-ku, Osaka Volcano shares In-company (58) Field surveyed (Int. Cl. ⁷ , DB name) B63J 4/00 B63B 13/00

Claims (1)

(57) [Claims] 1. A bilge water supply pipe is connected to an intermediate part of a single tank having a bilge water concentrating part in an upper part thereof and a concentrated bilge water storing part in a lower part of the tank. A bilge water circulation system for taking in bilge water taken out from a lower part in the tank via a pump into an upper part in the tank and connecting the bilge water to a bilge water spray pipe in the tank; A heat exchanger installed to heat the bilge water sprayed from the bilge water spray pipe;
A ventilating pipe connected to the tank between the heat exchanger and the liquid level in the tank, and a throttle damper capable of adjusting the amount of air flowing into the tank by the ventilating pipe; and a top of the tank And an induction ventilator connected to a discharge section at the top of the tank for inducing and discharging the gas in the tank through a demister.