KR20150003398A - Static fluid mixer and ballast water treatment device using same - Google Patents

Abstract

The present invention has as its object to provide a stationary fluid mixing apparatus which is simple in shape and can be efficiently mixed with a plurality of fluids in a short time, and a compact and inexpensive ballast water treatment apparatus using the same. And a flap portion (6) protruding from a plurality of positions in the circumferential direction of the inner circumferential surface of the inner circumferential surface toward the center line of the channel, wherein the float (5) A stationary fluid mixing apparatus comprising a mixing member for mixing with a main fluid with a Karman overheating resulting in the main fluid, the stationary fluid mixing apparatus comprising: a ring portion made of a plate member widening in the radial direction, the inner circumferential surface of which is the inner circumferential surface of the channel, (6A-1) that are spaced apart from each other in the circumferential direction and face the radially inward side and a circular arc-shaped protruding edge (6A-1) extending between the ends of both side edges facing inward 6B-1), and an opening (8) defined between the plurality of flap portions on the inner side of the inner surface of the ring portion has a narrowed region (7) between a plurality of arcuate projecting edges All.

Description

TECHNICAL FIELD [0001] The present invention relates to a static-fluid mixing apparatus and a ballast water treatment apparatus using the same,

The present invention relates to a static fluid mixing apparatus for uniformly mixing a float fluid into a main fluid by adding a float to a main fluid flowing through the channel, and a ballast water tank ballast water, and / or a ballast water treatment apparatus for performing a desired treatment on ballast water discharged from the ballast tank.

The stationary fluid mixing device does not include a movable member, is easy to structure, and is also applicable to a main flow of a large flow rate. Such a stationary fluid mixing apparatus is used, for example, in a case where a sterilizing agent is added to a ballast water (for example, seawater or river water) loaded on a ship to uniformly mix the sterilizing agent with the ballast water or when the ballast water is discharged from the ship, It is very suitable for use in harmonizing the sterilizing component harmless agent to the ballast water discharged from the ship by adding the sterilizing component harmless agent to the ballast water discharged from the ship in order to harmlessly sterilize the sterilizing component.

≪ Conventional static fluid mixing device &

A stationary fluid mixing device is known, for example, from U.S. Patent No. 5,839,828 (Patent Document 1).

The stationary fluid mixing device includes a ring portion having a short tubular shape and an inner flange portion extending from the inner peripheral surface of the ring portion in the circumferential direction of the ring portion and projecting inward in the radial direction of the ring portion and a flap portion extending in a substantially semicircular shape from each of a plurality of portions in the circumferential direction of the inner flange portion toward the radial center of the ring portion. The proximal end portions of the two side edges of each flap portion are connected to the inner circumferential edge of the inner flange portion by a smooth curved line.

Such a conventional static type fluid mixing device is fixed between two joints in a state where both side surfaces of the ring portion are sandwiched between two joints of two adjacent ends of two ducts arranged concentrically with each other. A small-diameter pipe passes through the ring portion from the outer circumferential surface to the inner circumferential surface of the ring portion along the radial direction of the ring portion. The inner end of the small diameter pipe is connected to the inner circumferential surface of the ring portion at a position downstream of the inner flange portion along the direction of the flow of the main fluid (for example, ballast water) As shown in Fig. A float (e.g., a bactericide or sterilizing component detoxifying agent) that is mixed with the main fluid (e.g., ballast water) is added into the main fluid via the small diameter pipe.

In such a conventional static type fluid mixing apparatus, the added fluid is quickly discharged by the Karman vortex street occurring on the downstream side of each flap portion, through the gap between the plurality of flaps, Lt; / RTI > Therefore, by using such a conventional static fluid mixing apparatus, it is possible to obtain a homogeneous mixing of the double fluid with respect to the main fluid within a short range on the downstream side from such a conventional static fluid mixing apparatus.

<Conventional Ballast Water Treatment System>

In general, a ship in which the empty load or dropping is less than a predetermined weight needs ballast water (for example, seawater or water) in the ballast tank before the navigation for the necessity of securing the depth of confinement of the propeller, River water) is injected. On the other hand, when the ballast water is dribbled over a predetermined weight, the ballast water is discharged from the ballast tank into the water.

When the taking and discharging of the ballast water is carried out at each port by a ship which reciprocates between ports carrying different loads of environment and ports for loading and unloading, the water contained in the water (for example, seawater or river water) Organisms such as fungi and plankton are brought into the water of the port where drainage has been carried out (for example, seawater or river water). As a result, the original coastal ecosystem in the vicinity of the harbor where the drainage is performed is disturbed. In February 2004, international conventions for the regulation and management of ships' ballast water and sediments in ballast water were adopted at international conventions on shipboard ballast water management, and the treatment of ballast water became obligatory.

According to the International Maritime Organization's (IMO) standards for the treatment of ballast water, the number of organisms (mainly zooplankton) in excess of 50 μm contained in the ballast water discharged from ships is less than 10, The number of organisms (mainly phytoplankton) less than 50 탆 is less than 10 in 1 ml, the number of cholera (Vibrio cholera) is less than 1 cfu in 100 ml, the number of Escherichia coli is less than 250 cfu in 100 ml, Is less than 100 cfu in 100 ml.

A conventional ballast water treatment apparatus is known, for example, in Japanese Patent Application Laid-Open No. 2007-144391 (Patent Document 2). This conventional ballast water treatment apparatus comprises: a filtration device for capturing and removing aquatic organisms by filtering seawater when collecting seawater as ballast water; A sterilizing agent supply device for supplying a sterilizing agent for sterilizing bacteria in seawater to the filtered seawater; A venturi tube device for generating cavitation in the filtered seawater supplied with the bactericide to diffuse the bactericide in the filtered seawater to sterilize the bacteria in the filtered seawater and destroy the remaining aquatic organisms in the filtered seawater .

U.S. Patent No. 5,839,828 Japanese Patent Application Laid-Open No. 2007-144391

However, in the conventional static-type fluid mixing device disclosed in U.S. Patent No. 5,839,828 (Patent Document 1), the side edges of the plurality of flaps are in the form of arcs, and both ends of each flap are smoothly curved And is connected to the inner peripheral edge of the flange portion. Therefore, in this conventional static-type fluid mixing apparatus, the contours of the openings defined by the respective side edges of the plurality of flap portions and the inner peripheral ends of the inner flange portions are complicated curves, so that the manufacturing cost of the conventional static type fluid mixing device is high . Therefore, a stationary fluid mixing apparatus which is lower in manufacturing cost than the conventional one is desired.

In addition, when the stationary fluid mixing apparatus is applied to the treatment of ballast water of a ship as described above, it is desired to uniformly mix the sterilizing agent or the sterilizing component detoxifying agent into the ballast water at a shorter distance, that is, . This means miniaturization of the ballast water treatment apparatus using the static type fluid mixing apparatus and also means reduction of the space required in the vessel for installation of such a ballast water treatment apparatus. In the conventional stationary fluid mixing apparatus disclosed in U.S. Patent No. 5,839,828 (Patent Document 1), since the inner peripheral edge of the inner flange protrudes inward from the inner peripheral surface of the channel through which the main fluid flows, The area of the opening to be passed is made small. As a result, the flow rate in the stationary fluid mixing device, and thus the mixing ability of the fluid, is lowered.

With respect to the ballast water treatment apparatus, it is necessary for the water intake of the ballast water accompanied by the biotreatment treatment and the sterilization treatment to be completed within a period of time for the load to be unloaded from the vessel, so that the bactericide is uniformly mixed with a large amount of ballast water It is preferable to use a static-type fluid mixing apparatus capable of being treated. When a venturi pipe apparatus is used as a static fluid mixing apparatus as in the ballast water treatment apparatus of Japanese Patent Application Laid-Open No. 2007-144391 (Patent Document 2), a plurality of venturi pipes are required for mass- The water treatment apparatus becomes large and the engine room of the ship needs to be enlarged, or the manufacturing cost becomes high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stationary fluid mixing apparatus which has a simpler shape as compared with a conventional stationary fluid mixing apparatus and is inexpensive and capable of efficiently mixing a plurality of fluids in a shorter time, It is a further object to provide a more compact and less expensive ballast water treatment apparatus using such a static fluid mixing apparatus.

The above-mentioned object is achieved by a static fluid mixing apparatus according to the present invention constructed as follows and a ballast water treatment apparatus using the same.

<Stationary fluid mixing device>

The stationary fluid mixing apparatus of the present invention comprises a ring portion concentrically interposed in a line through which a main liquid flows and a ring portion projecting from a plurality of positions along the circumferential direction of the ring portion in an inner peripheral surface of the ring portion toward a longitudinal center line of the channel And a mixing member which includes a plurality of flaps for causing the main fluid to overheat the Karman and uniformly mixing the auxiliary fluid supplied to the main fluid flowing through the channel with the main fluid by using the Karman heating.

According to the present invention,

Wherein the ring portion of the mixing member is made of a plate member that widens in the radial direction of the ring portion and the inner peripheral surface of the ring portion is flush with the inner peripheral surface of the channel,

Wherein each of the plurality of flaps extends between both edges spaced from each other in the circumferential direction and extending linearly inward in the radial direction and between the ends of the opposite edges toward the inside, Shaped protruding edge protruding toward the center,

And an opening defined between the plurality of flaps inside the inner peripheral surface of the ring portion has a narrow area between the plurality of arc-shaped protruding edges of the plurality of flaps.

In the stationary fluid mixing apparatus according to the present invention having such a constitution, from the plurality of positions along the circumferential direction of the ring portion on the inner circumferential surface of the ring portion of the mixing member, each of the plurality of flap portions protruding toward the longitudinal center line of the channel, And only the protruding edges protruding toward the longitudinal center line extend between the ends of the both side edges toward the inside, and are arc-shaped. Therefore, the shape of the outline of the opening defined between the plurality of flaps is simplified on the inner side of the inner peripheral surface of the ring portion. As a result, the manufacturing cost of the stationary fluid mixing apparatus according to the present invention can be reduced.

Since the inner circumferential surface of the ring portion is the inner circumferential surface of the conduit through which the main fluid flows, the area of the opening increases to the inner circumferential surface of the ring portion in the radial direction and increases along the inner circumferential surface of the ring portion in the circumferential direction. Resistance imparted to the main fluid passing through the opening of the stationary fluid mixing device is reduced, and the flowability of the opening to the main fluid is improved. As a result, the stationary fluid mixing apparatus according to the present invention can efficiently mix a plurality of fluids in a shorter time.

In the static-type fluid mixing apparatus according to the present invention, it is preferable that, in each of the plurality of flaps of the mixing member, both side surfaces of the mixing member in the direction along the longitudinal center line cross at right angles to the longitudinal centerline.

As described above, in the stationary fluid mixing apparatus according to the present invention, the ring portion of the mixing member is made of a plate member that widens in the radial direction of the ring portion. Thus, by doing each of the plurality of flap portions of the mixing member, The entire mixing member can be made into a plate member that widens in the radial direction of the ring portion. As a result, the manufacturing cost of the mixing member can be further reduced.

When the entire mixing member is a plate member that widens in the radial direction of the ring portion, when the nozzle for supplying the float is provided in the static-type fluid mixing apparatus according to the present invention as described above, It is easy to arrange the fluid in the flow direction of the main fluid in the channel at least at a position upstream, downstream, and at the same position as the mixing member with respect to the mixing member. Further, even if the direction of the flow of the main fluid flowing through the channel is reversed, it is possible to surely obtain the same effect by the stationary fluid mixing device according to the present invention.

As a result, it is possible to surely uniformly mix a plurality of kinds of float into the one static fluid mixing apparatus according to the present invention with respect to the main fluid, and also to control the flow conditions of the main fluid in the channel, The positional relationship between the mixing member in the flow direction of the main fluid and the nozzle for the float can be appropriately matched.

In the static-fluid mixing device according to the present invention, each of the plurality of flaps has a proximal end portion adjacent to the ring portion and a projecting end portion including the arcuate protruding end, and at least the protruding end portion, To the downstream side of the flowing main fluid. By doing so, it is possible to reduce the resistance given to the main fluid by the protruding end portion.

In the stationary fluid mixing apparatus according to the present invention, the mixing member may be provided with an annular portion formed between the inner circumferential surface of the ring portion and the base end portion of the plurality of flap portions so as to be in contact with the inner circumferential surface of the channel have. By providing the annular portion, bent portions are formed between the inner peripheral surface of the ring portion and the annular portion, and between the annular portion and the base portion of the plurality of flaps. The bent portion is in contact with the inner circumferential surface of the channel and the strength of the mixing member is improved. Therefore, even if the resistance given by the main fluid to the plurality of flap portions of the mixing member is somewhat increased, no deformation or damage is caused to the plurality of flap portions, and hence to the mixing member. The annular portion in contact with the inner circumferential surface of the channel does not substantially reduce the area of the opening of the mixing member to such an extent that the fluid mixing performance of the stationary fluid mixing device is substantially greatly reduced.

The stationary fluid mixing device according to the present invention further comprises a sub fluid supply nozzle for supplying the sub fluid from the outside of the channel to the inside of the channel, And at least one of the upstream side, the downstream side, and the same position as the mixing member with respect to the mixing member in the flow direction of the main fluid within the mixing chamber. The auxiliary fluid supply nozzle may be provided independently of the mixing member with respect to the channel, or may be assembled with the mixing member. The inner end of the sub fluid supply nozzle may be within the range of the opening of the mixing member as viewed in the direction along the longitudinal center line of the duct. Further, the number of the auxiliary fluid supply nozzles can be freely set.

<Ballast Water Treatment System>

The ballast water treatment apparatus of the present invention uses the stationary fluid mixing apparatus of the present invention described above.

A ballast water treatment apparatus according to the present invention for receiving ballast water includes a ballast water intake water pipe for leading the liquid taken as ballast water to a ballast tank and a ballast water intake water pipe interposed in the ballast water intake water pipe, A sterilizing agent supply device for supplying a sterilizing agent for sterilizing organisms and bacteria existing in the liquid after filtration; and a sterilizing agent intervening in the ballast water intake duct and supplying sterilizing agent supplied from the sterilizing agent supply device to the filtered liquid And the fluid mixing device is the stationary fluid mixing device according to the present invention described above.

A ballast water treatment apparatus according to the present invention for discharging ballast water is provided with a ballast water discharge pipe through which ballast water discharged from a ballast tank flows and a sterilizing component harmless agent for detoxifying a sterilizing component remaining in the discharged ballast water And a fluid mixing device for uniformly mixing the detoxifying component detoxifying agent supplied from the sterilizing component detoxifying agent supplying device interposed in the ballast water discharging duct to the discharged ballast water, The fluid mixing device is the static fluid mixing device according to the present invention described above.

The ballast water treatment apparatus according to the present invention for discharging ballast water and discharging ballast water includes a ballast water intake water pipe for leading the liquid taken as ballast water to the ballast tank, A sterilizing agent supply device for supplying a sterilizing agent for sterilizing the organisms and bacteria present in the liquid after the filtration; and a sterilizing device for sterilizing the sterilizing agent supplied from the sterilizing agent supply device A fluid mixing device for uniformly mixing the sterilizing agent with the liquid after filtration, a ballast water discharge pipe through which the ballast water discharged from the ballast tank flows, and a sterilizing component harmless agent for sterilizing the sterilizing component remaining in the discharged ballast water A sterilizing component detoxifying agent supply device, And a fluid mixing device that uniformly mixes the sterilizing component detoxifying agent supplied from the component detoxicating agent supply device into the discharged ballast water, wherein the fluid mixing device and the ballast water discharge pipe pass through the ballast water intake pipe Wherein the fluid mixing apparatus interposed is the same and is used in the fluid mixing apparatus in which the ballast water intake pipe and the ballast water discharge pipe are the same and commonly used,

Wherein when the ballast water is delivered to the ballast tank via the ballast water intake pipe, the ballast water discharge pipe is shut off and the supply of the sterilizing component harmless agent by the sterilizing component detoxifying agent supply device to the fluid mixing device The supply of the sterilizing agent by the sterilizing agent supply device to the fluid mixing device is carried out instead,

Wherein when the ballast water is discharged from the ballast tank through the ballast water discharge pipe, the ballast water intake pipe is shut off and the supply of the sterilizing agent to the fluid mixing device by the sterilizing device is stopped, The supply of the sterilizing component detoxifying agent by the sterilizing component detoxifying agent supplying device to the fluid mixing device is performed,

The same fluid mixing device as described above is the stationary fluid mixing device according to the present invention described above.

Fig. 1 is a perspective view showing a part of a pipeline in which a first embodiment of the static-fluid mixing apparatus according to the present invention is installed, together with a stationary fluid mixing apparatus,
Fig. 2 is a cross-sectional view along the longitudinal center line of the portion of the channel in which the stationary fluid mixing device shown in Fig. 1 is installed,
FIG. 3A is a perspective view showing a first example of a mixing member used in the static-type fluid mixing apparatus shown in FIGS. 1 and 2,
FIG. 3B is a perspective view showing a second example of the mixing member used in the static-type fluid mixing apparatus shown in FIGS. 1 and 2,
Fig. 3C is a perspective view showing a third example of the mixing member used in the stationary fluid mixing apparatus shown in Figs. 1 and 2,
Fig. 4 is a cross-sectional view along the longitudinal center line of a portion of the pipeline in which the modification of the stationary fluid mixing apparatus shown in Figs. 1 and 2 is installed;
Fig. 5 shows an example of mixing state of a float to a main fluid in the static fluid mixing apparatus of the first embodiment shown in Figs. 1 and 2, and U.S. Patent No. 5,839,828 (Patent Document 1) A graph showing the mixing state of the conventional static fluid mixing apparatus described above as a comparative example,
6A is a perspective view showing a second embodiment of the stationary fluid mixing apparatus according to the present invention,
Fig. 6B is a perspective view showing a portion of a channel in which the second embodiment of the stationary fluid mixing apparatus of Fig. 6A is installed, together with a stationary fluid mixing device,
Figure 7 is a cross-sectional view along the longitudinal centerline of the portion of the channel of Figure 6b,
8 schematically shows the configuration of a ballast water treatment apparatus according to the first embodiment of the present invention of ballast water intake using a static fluid mixing apparatus according to one or a modification of the various embodiments of the present invention drawing,
9 schematically shows a configuration of a ballast water treatment apparatus according to a second embodiment of the present invention for discharging ballast water using a static fluid mixing apparatus according to one or a modification of the various embodiments of the present invention drawing,
Fig. 10 is a schematic view of a ballast water according to a third embodiment of the present invention, which can be used for both ballast water intake and ballast water discharge using a stationary fluid mixing apparatus according to one or a modification of the various embodiments of the present invention Fig. 1 is a view schematically showing a configuration of a processing apparatus. Fig.

&Lt; First Embodiment >

1 and 2 show a stationary fluid mixing apparatus 1 according to a first embodiment of the present invention which includes a mixing member 2 and a sub fluid supply nozzle 3). The mixing member 2 is made entirely of a flat plate-like member and is interposed in a channel through which the main fluid flows in the direction indicated by the arrow A. Specifically, the mixing member 2 is sandwiched between the joints 4A and 4A of the two concentrically adjacent tubular members 4 and 4 constituting a part of the duct. The auxiliary fluid supply nozzle 3 penetrates the tube wall of the tube member 4 located on the upstream side in the main fluid flow direction A from the outside to the inside in the radial direction of the tube member 4, Is disposed adjacent to the upstream side of the mixing member (2). At the inner end of the secondary fluid supply nozzle 3, there is provided a discharge port for the secondary fluid to be mixed with the primary fluid. In this embodiment, the inner end of the subsidiary fluid supply nozzle 3 reaches the longitudinal center line of the tubular member 4.

In the present embodiment, each of the pipe members 4, 4 has a tapered shape in which the vicinity of the joint 4A gradually widens as the joint 4A approaches. The vicinity of the joints 4A and 4A where the mixing member 2 is sandwiched by the tubular members 4 and 4 gradually widens the inside diameter by the tapered shape, It is possible to reduce the pressure loss generated in the mixing member 2 by the main fluid flowing in the channel. However, it is not necessary to enlarge the inner diameter in the vicinity of the joints 4A and 4A in the tubular members 4 and 4, if the pressure loss occurring in the main fluid at the opening of the mixing member 2 is allowable.

Figs. 3A, 3B and 3C show three examples of the mixing member 2 used in the stationary fluid mixing apparatus 1 shown in Figs. 1 and 2. Fig. Each of the three example mixing members 2 is sandwiched between the joints 4A and 4A of the two tubular members 4 and 4 shown in Figs. 1 and 2, And a plurality of flap portions 6 projecting from a plurality of positions along the circumferential direction of the ring portion 5 on the inner circumferential surface of the ring portion 5 toward the longitudinal center line of the channel. Two flap portions 6 protrude from two positions spaced from each other by 180 degrees along the circumferential direction of the ring portion 5 toward the radially inner side of the ring portion 5 in each of the mixing members 2. However, according to the concept of the present invention, the number of the flap portions 6 may be three, four, and four or more. An opening (8) is defined between the plurality of flap portions (6) on the inner side of the inner peripheral surface of the ring portion (5).

In the first example of the mixing member 2 shown in Fig. 3A, the ring portion 5 has the same inner and outer diameters as the inner and outer diameters of the joint 4A, It is made of plate material. The ring portion 5 is provided with a plurality of bolts (not shown) used for fixing the ring portion 5 to the joints 4A and 4A of the two pipe members 4 and 4 of the pipe, A plurality of bolt through holes 5B are formed at a plurality of positions spaced at equal intervals in the circumferential direction of the ring portion 5. [ After the ring portion 5 is held and fixed by the joints 4A and 4A of the two tubular members 4 and 4 of the conduit, the inner circumferential surface 5A of the ring portion 5 is held by the two tubular members (4) and (4).

In the second example of the mixing member 2 shown in Fig. 3B, the ring portion 5 is made of a plate member widening in the radial direction of the ring portion 5, and has the same inner diameter as the inner diameter of the joint 4A However, it has an outer diameter smaller than the outer diameter of the joint 4A. The mixing member 2 of the second example has the two joints 4A and 4A after concentrating the ring portion 5 concentrically with the joints 4A and 4A of the two pipe members 4 and 4 of the pipe, (Not shown) at a plurality of positions spaced from each other in the circumferential direction at equal intervals in the circumferential direction by a known fixing element such as a bolt (4A, 4A). After the ring portion 5 is held and fixed by the joints 4A and 4A of the two tubular members 4 and 4 of the conduit, the inner circumferential surface 5A of the ring portion 5 is held by the two tubular members (4) and (4).

3C, the ring portion 5 is made of a plate member widening in the radial direction of the ring portion 5, and the ring portion 5 is formed on the outer peripheral surface of the ring portion 5, Visible projections 2A are formed in the radial direction of the ring portion 5 from a specific position in the circumferential direction of the ring portion 5 (in this example, the center in one circumferential direction of one of the two flap portions 6) Respectively. The projecting protrusions 2A are fixed and held by the ring portions 5 concentrically with the first and second examples by the joints 4A and 4A of the two tubular members 4 and 4 And protrudes outward in the radial direction of the joints 4A and 4A, and can be visually confirmed. Therefore, during the fixing as described above, the position of the plurality of flaps 6 in the circumferential direction of the two joints 4A, 4A and the position of the plurality of flaps 6 in the circumferential direction The positional relationship of the flap portion 6 can be easily confirmed. After the ring portion 5 is held and fixed by the joints 4A and 4A of the two tubular members 4 and 4 of the conduit, the inner circumferential surface 5A of the ring portion 5 is held by the two tubular members (4) and (4).

In each of the plurality of flaps 6 of the mixing members 2 of the first, second and third examples shown in Figs. 3A, 3B and 3C, Both side faces of the members (4, 4) in the direction along the longitudinal center line cross at right angles to the longitudinal center line.

Each of the plurality of flap portions 6 includes two side edges 6A-1 spaced from each other in the circumferential direction of the ring portion 5 and extending linearly inward in the radial direction of the ring portion 5, And an arc-shaped protruding edge (6B-1) extending between the ends of both side edges (6A-1) toward the longitudinal center line.

The arc-shaped protruding edge 6B-1 of each flap portion 6 of each of the above-described various examples also has a protruding edge 6B-1 in the circumferential direction of the ring portion 5 extending from both sides of the edge 6A- Respectively.

The opening 8 defined between the plurality of flaps 6 and 6 on the inner side of the inner circumferential surface of the ring portion 5 is located between the adjacent projected edges 6B-1 of the plurality of flaps 6 And a narrowed-area 7.

The both side edges 6A-1 of the respective flap portions 6 of the various examples described above are tapered so as to gradually reduce the distance between the ring portion 5 and the arcuate protruding edge 6B- Shape.

Therefore, the opening 8 is formed as a fan-like region 9 having a fan shape between two flap portions 6 and 6 adjacent to each other. A plurality of fan-shaped regions 9 between the plurality of flap portions 6 and 6 are communicated with each other by the narrowed region 7 to form one opening 8. [

In each of the flap portions 6, a portion adjacent to the ring portion 5 is a root portion 6A, and a portion including the arc-shaped protruding edge 6B-1 is a protruding end portion 6B.

The angle at which the tangent lines intersect at the positions of the inner circumferential surface 5A of the ring portion 5 at which the edges 6A-1 and 6A-1 of the respective flap portions 6 intersect each other Preferably 90 degrees or more. With this angle, the strength of the base end portion 6A of the flap portion 6 adjacent to the ring portion 5 can be increased. Also, in the case where the angle is 90 degrees (including two flap portions 5 as in each of the mixing members 2 of various examples shown in Figs. 3A, 3B and 3C) More preferably, the extending line in the radial direction in each of the two side edges 6A-1 of the portion 6 intersects the longitudinal center line. By doing so, the strength of the base end portion 6A of the flap portion 6 can be sufficiently secured and at the same time, the mixing member 2 of the static-type fluid mixing device 1 can be opened 8) of the plurality of fan-shaped regions (9).

When the main fluid is made to flow in the above-described channel in which the stationary fluid mixing apparatus 1 of the present embodiment is interposed in the direction of the arrow A shown in Figs. 1 and 2, Passes through the opening (8). The main fluid that has passed through the opening 8 forms a radiant heat at the back side of the plurality of flap portions 6, 6, that is, the downstream side. The Karmann heat is particularly developed on the back side of the projecting end portion 6B of the plurality of flap portions 6, 6, that is, on the downstream side. Therefore, the float supplied from the float supply nozzle 3 into the channel flows through the opening 8 of the mixing member 2 together with the main fluid, and then rapidly flows into the whole of the main fluid in the channel by the Karmen and heat And uniformly mixed in the main fluid.

In addition, the fan-like region 9 having an area larger than the narrowed region 7 in the opening 8 of the mixing member 2 and having an arc that is the same as the inner peripheral face of the pipe is passed through the opening 8 Thereby ensuring a large flow rate of the main fluid passing through the opening 8. [0050] As a result, the mixing treatment ability of the auxiliary fluid to the main fluid by the mixing member 2 is enhanced.

&Lt; Modification of First Embodiment >

Fig. 4 shows a modification of the stationary fluid mixing apparatus 1 according to the first embodiment of the present invention shown in Figs. 1 and 2. In the stationary fluid mixing apparatus 1 'according to this modified example, the mixing member 2 is provided with an inner circumferential surface of the ring portion 5 and a base end portion of the plurality of flap portions 6, And an annular portion 10 configured to contact the inner peripheral surface of the member 4 is provided.

In this modified example, at least the protruding end portion 6B of the plurality of flap portions 6 is inclined to the downstream side of the main fluid flowing through the channel with respect to the ring portion 5.

The provision of the annular portion 10 allows the bending portion 10 to be bent between the inner peripheral surface of the ring portion 5 and the annular portion 10 and between the annular portion 10 and the base portion 6A of the plurality of flap portions 6, The site develops. These bent portions improve the strength of the mixing member 2 while the annular portion 10 is in contact with the inner peripheral surface of the channel. Therefore, even if the resistance given by the main fluid to the plurality of flaps 6 of the mixing member 2 is somewhat increased, it is possible to prevent deformation or damage to the plurality of flaps 6, Do not. The annular portion 10 which is in contact with the inner peripheral surface of the channel has an area of the opening 8 of the mixing member 2 so as to substantially reduce the fluid mixing performance of the stationary fluid mixing apparatus 1 ' But does not substantially reduce it substantially.

As shown in Fig. 1, Fig. 2 and Fig. 4, if the vicinities of the joints 4A, 4A of the two adjacent pipe members 4, 4 of the pipe line are tapered and the inside diameter is enlarged , The annular portion 10 projects more inward than the inner circumferential surface of the cylindrical portion of the tubular member 4 in the radial direction of the tubular member 4 by contacting the annular portion 10 with the inner circumferential surface of any one of the tapered portions . Therefore, the presence of the annular portion 10 can further reduce the fluid resistance generated with respect to the main fluid flowing through the pipe member 4. In addition, each of the plurality of flap portions 6, which are inclined as described above, reduces the fluid resistance that the plurality of flap portions 6 impart to the main fluid flowing through the channel.

Each of the main fluid and the float flowing into the in-pipe and sub fluid supply nozzles 3 through which the stationary fluid mixing apparatus 1 according to the present embodiment or the stationary fluid mixing apparatus 1 'according to the modification is interposed, Or a gas.

According to the concept of the present invention, the float nozzle 3 may not be located near the upstream side of the stationary fluid mixing apparatus 1 or the stationary fluid mixing apparatus 1 'in the channel. The float may be supplied in the main fluid flowing in the channel by any known means from a position spaced upstream of the stationary fluid mixing apparatus 1 or the stationary fluid mixing apparatus 1 'in the channel. If the fluid is already supplied to the main fluid at a position spaced upstream from the stationary fluid mixing apparatus 1 or the stationary fluid mixing apparatus 1 'in the pipe, Even if diffusion and mixing are insufficient, as described above, on the downstream side of the mixing member 2, the float is rapidly diffused sufficiently to be mixed with the main fluid uniformly when passing through the mixing member 2.

When supplying the auxiliary fluid to the main fluid flowing through the duct by using the auxiliary fluid supply nozzle 3, the auxiliary fluid is sufficiently uniformly distributed to the main fluid by the Karman and heat generated in the main fluid in the mixing member 2 The auxiliary fluid supply nozzle 3 is located at a position at least one of the upstream side, the downstream side, and the same position as the mixing member 2 with respect to the mixing member 2 in the flow direction of the main fluid . A plurality of auxiliary fluid supply nozzles 3 may be provided on at least one of the upstream side and the downstream side of the mixing member 2 and the same position as the mixing member 2.

The position and the number of the discharge ports of the auxiliary fluid supply nozzle 3 in the pipeline and the number of the auxiliary fluid supply nozzles 3 are set so that the number of the auxiliary fluid supply nozzles 3 If the float can be sufficiently uniformly mixed with respect to the main fluid.

However, by using the auxiliary fluid supply nozzle 3 to supply the auxiliary fluid to the main fluid flowing in the duct, and to generate the auxiliary fluid to the main fluid by the Karman and heat generated in the main fluid in the mixing member 2, As shown in Fig. 1, Fig. 2 and Fig. 3, it is preferable to mix the two components in the vicinity of the upstream side with respect to the mixing member 2 in the direction of the flow of the main fluid flowing in the channel The discharge port of the float at the inner end of the float supply nozzle 3 is located at the longitudinal center line of the pipe member 4 and the discharge port of the float at the inner end of the float supply nozzle 3 is located in the direction of the flow of the main fluid. Is preferably within the range of the narrowed area (7) of the opening (8) of the mixing member (2).

The flow velocity of the auxiliary fluid supplied from the discharge port of the auxiliary fluid supply nozzle 3 into the tubular member 4 is preferably about 1/10 of the flow rate of the main fluid flowing in the tubular member 4. [ The floating fluid that has reached the range of the narrowed region 7 of the opening 8 of the mixing member 2 along the longitudinal center line of the tubular member 4 reaches the plurality of flaps of the mixing member 2 6B of the plurality of flap portions 6 adjacent to the narrowed region 7 of the opening 8 of the opening 8 of the mixing member 2 caused by the main fluid at the downstream side of the flap portion 6 Of the mixing member 2 from the narrowed region 7 of the opening 8 of the mixing member 2 to the direction along the longitudinal center line of the tubular member 4 Lt; RTI ID = 0.0 &gt; of &lt; / RTI &gt; If the flow velocity of the float relative to the flow rate of the main fluid flowing through the pipe member 4 is larger than the above value, the float becomes hard to be sucked into the column and the heat generated in the main fluid, It takes a long distance range from the mixing member 2 in the direction along the longitudinal center line until it is mixed.

In the first embodiment and the modification shown in Fig. 1, Fig. 2 and Fig. 4, the mixing member 2 is constituted such that the ring part 5 is formed by two adjacent pipe members 4, 4A and is fixed to the joints 4A, 4A by using a known fixing element such as a bolt, for example. However, a known mixing member fixing structure capable of detachably fixing the mixing member 2 may be previously provided at a desired position in the pipe, and the mixing member 2 may be detachably fixed to the mixing member fixing structure .

&Lt; Test Results of Examples and Comparative Examples >

Next, the mixing state of the auxiliary fluid relative to the main fluid in the stationary fluid mixing apparatus 1 according to the first embodiment of the present invention shown in Figs. 1 and 2 is described as an example, and US Pat. No. 5,839,828 5 shows the result of a test in which the mixing state of the conventional stationary fluid mixing apparatus described in Patent Document 1 is compared as a comparative example.

In Fig. 5, the abscissa indicates the distance from the stationary fluid mixing apparatus 1 of the first embodiment and the conventional stationary fluid mixing apparatus in the duct to the downstream side in the direction of the flow of the main fluid flowing through the channel Distance ratio (a distance obtained by dividing the distance X on the downstream side from the respective static-type fluid mixing apparatuses by the inner diameter D of the pipe member constituting the pipeline), and a position having a distance ratio of 0, (The position of the mixing member 2 in the configuration of the static fluid mixing apparatus of the first embodiment shown in Figs. 1 and 2), and P is the position of the secondary fluid supply nozzle.

The vertical axis shows the concentration ratio of the float to the main fluid measured at a plurality of positions (in FIG. 2, at right angles to the plane of the drawing) horizontal to the longitudinal center line of the channel. The concentration ratio is a value obtained by dividing the measured value of the concentration of the float against the main fluid by the value of the concentration when the fluid is substantially uniformly mixed with respect to the main fluid, It is the value of the concentration when mixed uniformly.

5 shows the distribution of concentration ratios measured at a plurality of positions in a direction (perpendicular to the paper surface in Fig. 2) with respect to the longitudinal center line for every other position along the longitudinal center line of the pipeline . The range enclosed by the solid line represents the concentration ratio distribution of the example, and the range enclosed by the dashed line represents the concentration ratio distribution of the comparative example.

5, in the embodiment shown by the solid line in the mixing state in the stationary fluid mixing apparatus 1 according to the first embodiment of the present invention, the stationary fluid mixing apparatus 1 in the direction of the main fluid flow in the channel Although a wide range of concentration ratios are dispersed in the horizontal direction with respect to the longitudinal center line of the channel in the position (distance ratio 0) of the stationary fluid mixing device 1, The distribution of concentration ratios in the horizontal direction is rapidly converged to 1 within a short distance of 2 to 3 at the side of the substrate. On the other hand, in the comparative example in which the mixing state of the conventional stationary fluid mixing apparatus described in U.S. Patent No. 5,839,828 (Patent Document 1) is shown by the broken line, The distribution of the concentration ratio in the horizontal direction is converged to 1 at a position spaced apart by a distance ratio of 4 to 5 from the position of the stationary fluid mixing device to the downstream side.

In addition, even when the above-mentioned concentration ratio is measured at a plurality of positions in the direction perpendicular to the longitudinal centerline (up-and-down direction in FIG. 2) at different positions along the longitudinal center line of the channel, Lt; RTI ID = 0.0 &gt; 1 &lt; / RTI &gt;

The results of these tests show that in the stationary fluid mixing apparatus 1 according to the first embodiment of the present invention shown in Figs. 1 and 2, the stationary fluid mixing apparatus 1 according to the first embodiment, Since the mixing ratio of the auxiliary fluid to the main fluid is substantially uniform over the entire cross section of the main fluid at a position quite close to the fluid mixing device 1 on the downstream side, This means that the length of the pipeline required for one mixing can be made small. Therefore, when the stationary fluid mixing apparatus 1 according to the first embodiment of the present invention shown in Figs. 1 and 2 is used as a stationary fluid mixing apparatus of a ballast water treatment apparatus, the entire ballast water treatment apparatus is compact (compact).

&Lt; Second Embodiment >

Next, a static fluid mixing apparatus 1 "according to a second embodiment of the present invention will be described with reference to Figs. 6A, 6B, and 7. In the static fluid mixing apparatus 1 "), the mixing member 2 and the auxiliary fluid supply nozzle 3 are constituted by one unit.

In this embodiment, on one side surface of the ring portion 5 of the mixing member 2 of the stationary fluid mixing apparatus 1 ", an inner diameter equal to the inner diameter of the mixing member 2 and a diameter smaller than the outer diameter of the mixing member 2 Shaped connection portion 11 having an outer diameter is fixed concentrically in a sealed state by a known sealing and fixing technique such as welding. The connection portion 11 is formed in a direction along the center line of the connection portion 11 An annular plate 12 having the same shape and dimensions as those of the ring portion 5 of the mixing member 2 is concentrically sealed in an end portion of the mixing member 2 opposite to the ring portion 5, The inner circumferential surface of the ring portion 5 of the mixing member 2 and the inner circumferential surface of the connecting portion 11 and the inner circumferential surface of the annular plate 12 are mutually opposed to each other And forms one continuous inner circumferential surface.

A plurality of flap portions 6 are formed on the inner peripheral surface of the ring portion 5 of the mixing member 2 in the radial direction of the ring portion 5 in at least one position in the circumferential direction The auxiliary fluid supply nozzle support cylinder 13 extending outward in the radial direction of the connection portion 11 is provided at a position adjacent to at least one of the plurality of positions protruding from the auxiliary fluid supply nozzle support cylinder 13 by a known sealing and fixing technique such as welding Is fixed. The inner diameter of the subsidiary fluid supply nozzle support tube (13) is larger than the outer diameter of the subsidiary fluid supply nozzle (3). A lid member 14, which is larger than the outer diameter of the float supply nozzle support tube 13, is fixed at the outer end of the float supply nozzle support tube 13 in a sealed state. A through hole 14A through which the float supply nozzle 3 passes is formed in the center of the lid member 14. The float supply nozzle 3 inserted into the through hole 14A is formed in the through hole 14A And is fixed in a sealed state by a known sealing technique such as welding. The outer flange portion of the lid member 14 is detachably fixed by a known sealing fixation technique to an unillustrated outer flange portion at the tip of a secondary fluid supply pipe extending from a secondary fluid supply source have. In this embodiment, as this known sealing and fixing technique, the outer flange of the cover member 14 of the sub fluid supplying nozzle support tube 13 and the outer flange of the auxiliary fluid supply pipe extending from the non- For example, an O-ring sandwiched between the outer flange portion (not shown) and the outer flange portion of the lid member 14 at a plurality of positions spaced from each other in the circumferential direction And a fixing bolt that is inserted into the mounting hole 14B provided in the mounting hole 14B and is not shown and fixed to an unillustrated outer flange portion of the tip of a float supply pipe extending from a float supply source not shown.

The auxiliary fluid supply nozzle 3 inserted and fixed in the auxiliary fluid supply nozzle support cylinder 13 is arranged in the same manner as in the stationary fluid mixing apparatus 1 according to the first embodiment shown in Figs. As in the case of the auxiliary fluid supply nozzle 3, the discharge port at the inner end is located on the longitudinal center line of the pipe members 4, 4 which constitute a part of the pipe.

As shown in Figs. 6B and 7, the unit in which the mixing member 2 and the auxiliary fluid supply nozzle 3 are integrated as described above is constituted by two adjacent pipe members (4A, 4A) of the first and second plates (4, 4).

A plurality of bolt holes 4A-1 are formed in each of the joints 4A, 4A of the pipe members 4, 4 at a plurality of positions spaced apart from each other in the circumferential direction of the pipe member 4. The pitch circle of the plurality of bolt holes 4A-1 is concentric with the longitudinal center line of the pipe member 4 and the diameter of the pitch circle is larger than the diameter of the ring portion 5 of the mixing member 2 of the unit ) And the outer diameter of the annular plate (12).

The unit of this embodiment is arranged concentrically with the joints 4A and 4A between the joints 4A and 4A of the two adjacent tubular members 4 and 4 and then the two joints 4A and 4A are disposed concentrically with the joints 4A and 4A, (Not shown) inserted into the plurality of bolt holes 4A-1 of the first bolt hole 4A-1. The discharge port at the inner end of the sub fluid supply nozzle 3 of the unit held between the joints 4A and 4A is positioned on the longitudinal center line of the two adjacent pipe members 4 and 4.

As described above, the tip of the auxiliary fluid supply pipe extending from the auxiliary fluid supply source (not shown) after the unit is mounted between the joints 4A and 4A of the two adjacent pipe members 4 and 4 Is detachably fixed to the outer flange portion of the lid member 14 of the support tube 13 by a known sealing and fixing technique as described above.

Since the stationary fluid mixing apparatus 1 "of the present embodiment is configured as a single unit of the mixing member 2 and the float supply nozzle 3, handling is easy.

In the present embodiment, it is preferable that a hanging piece is provided on the outer peripheral surface of the connecting portion 11 of the stationary fluid mixing apparatus 1 "so that the handling of the stationary fluid mixing apparatus 1" is facilitated .

<Ballast Water Treatment System for Receiving Ballast Water>

Next, any one of the static-fluid mixing apparatuses 1, 1 ', 1 "according to the first embodiment, its modifications, and the second embodiment of the present invention described with reference to Figs. 1 to 4 and 6 A ballast water treatment apparatus for receiving ballast water will be described with reference to Fig.

Fig. 8 schematically shows the configuration of a ballast water treatment apparatus according to the first embodiment of the present invention. As shown in Fig. 8, this ballast water treatment apparatus includes a sea chest (seawater intake port) 40 provided on the ship for blowing, for example, seawater or river water into the ballast water, A ballast water intake pipe 41 for guiding the ballast water taken from the seed chest 40 to the ballast tank 47 as a water and a ballast water intake pipe 41 for intercepting the ballast water from the sea chest 40, A pump 43 for feeding the ballast water to the ballast water tank 47 via the ballast water intake water line 41 and a pump 43 for supplying the ballast water to the ballast water intake pipe 41, A filtration device 44 for capturing the organisms including the plankton present in the liquid by filtration, an organism including bacterium or plankton existing in the liquid after filtration A fluid mixing device 46 which is interposed in the ballast water intake duct 41 and diffuses the sterilizing agent supplied from the sterilizing agent supply device 45 into the liquid after filtration and uniformly mixes the sterilant, And the liquid after filtration in which the sterilizing agent is uniformly mixed in the fluid mixing device 46 is also conveyed to the ballast tank 47 on the downstream side of the fluid mixing device 46 by the ballast water intake duct 41 .

In this embodiment, as the fluid mixing device 46, the static mixer 1 according to the first embodiment, the modification thereof, and the second embodiment of the present invention described with reference to Figs. 1 to 4 and 6 , 1 &quot;, 1 "). In this case, the static mixer according to the first embodiment, the modification thereof, and the second embodiment of the present invention, which are used as the fluid mixing device 46, The sterilizing agent is supplied from the sterilizing agent supply device 45 to any one of the sub fluid supply nozzles 3 of the mixing member 2 and the opening 8 of the mixing member 2 as the main fluid, 44).

The filtration device 44 includes plankton, for example, seawater or river water as ballast water taken from the sea chest (seawater intake port) 40 and conveyed by the pump 43 through the ballast water intake duct 41 Is captured by a conventionally known filter medium. It is preferable to use a filter material having a filtration opening of 30 mu m to 100 mu m. Setting the filtration opening to 30 to 100 mu m means that the frequency of backwashing required to prevent clogging of the filtration openings is reduced while maintaining the trapping rate of organisms including zooplankton and phytoplankton at a constant level, In order to shorten the ballast water treatment time. If the opening for filtration is larger than 100 mu m, the trapping rate of organisms including zooplankton and phytoplankton is remarkably lowered. If the opening for filtration is smaller than 30 mu m, the frequency of backwashing increases and the treatment time of ballast water at the port of call becomes longer .

As the filtration device 44, it is preferable to use a filtration device using a notch wire filter, a wedge wire filter, or a lamination disk as a filter medium. It is also preferable to use, as the filtration device 44, a filtration device in which the filter medium is composed of a metal mesh filter or a resin cross filter.

Since the filtration device 44 using the filter medium having the filtration opening of about 30 μm to 100 μm captures most of the organisms including the zooplankton and the phytoplankton in the seawater or the river water taken as the ballast water, For example, seawater or river water taken as ballast water after passing through the filtration device 44 becomes bacteria and organisms including fine plankton unfiltered by the filtration device 44. [ Therefore, compared to the case where the organisms and fungi including zooplankton and phytoplankton contained in, for example, seawater or river water taken as ballast water without using the filtration device 44 are simply sterilized using a sterilizing agent alone, Can be greatly reduced. As a result, it is possible to reduce the cost of purchasing the disinfectant, further reduce the storage tank for the disinfectant in the disinfectant supply device 45, and thus reduce the storage space required in the vessel for the ballast water treatment apparatus have. Further, it is possible to make the use of a sterilizing component detoxifying agent for detoxifying the sterilizing component in the sterilizing agent, which is required when the ballast water is discharged from the ballast tank 47 to the outside of the ship, .

The bactericide supply device 45 is a device for supplying a sterilizing agent for sterilizing organisms including bacterium or plankton remaining in sea water or river water as ballast water filtered by the filtration device 44, 1 to 4 and 6, which are used as the fluid mixing device 46 in the ballast water treatment apparatus shown in Fig. 1, the modified example, and the second embodiment of the present invention, The sterilizing agent supply device 45 supplies the sterilizing agent to the auxiliary fluid supply nozzle 3 for any one of the mixing devices 1, 1 ', 1 & And sends it to the secondary fluid supply nozzle 3. The sterilizing agent may be, for example, sodium hypochlorite (NaOCl), chlorine, diacid Chlorine, otitis tetroxide SOCCIA nyulsan sodium _{(sodium dichloroisocyanurate: C 3 N 3} O 3 Cl 3 Na), hydrogen peroxide, ozone (ozone), peracetic acid, or can be used for these two or more kinds of mixtures, to use a fungicide other than It is also possible.

Next, the operation of the ballast water treatment apparatus of the present embodiment shown in Fig. 8 constructed as described above will be described. By operating the pump 43, for example, seawater or river water is transported as ballast water by the ballast water intake duct 41 from the seed chest 40 toward the ballast tank 47. The organisms including zooplankton and phytoplankton larger than the size of the filtration openings of the filter medium of the filtration device 44 are captured from the ballast water therebetween.

The creature including the plankton trapped by the filtration device 44 is discharged to the outboard side of the filtration device 44 by backwashing the filter material of the filtration device 44 in the same water area as the ballast water is taken, For example, in the sea area or in the river. Even if it is returned to the above water, it does not adversely affect the ecosystem of the water body because it is the same water area as the water area where the ballast water is taken.

The above-described bactericide is supplied to the ballast water filtered by the filtration device 44 from the bactericide supply device 45 via the fluid mixing device 46. The sterilizing agent is diffused into the filtered ballast water by the fluid mixing device 46 And the ballast water after the filtration is sterilized by being mixed uniformly. The ballast water after the sterilization treatment is led to the ballast tank 47 by the ballast water intake pipe 41 and stored in the ballast tank 47.

In the ballast water stored in the ballast tank 47, it is preferable that the sterilizing component of the sterilizing agent remains at a predetermined concentration or more. The sterilizing component remaining in the ballast tank 47 at a predetermined concentration or more suppresses regrowth of bacteria. The concentration of the sterilizing component remaining in the ballast tank 47 is appropriately determined according to the kind of the sterilizing agent and the material of the ballast tank 47 or the kind of coating, And adjusts the supply amount of the sterilizing agent to the device (46).

The sterilization treatment of the ballast water is not performed when, for example, seawater or river water is loaded on the ballast tank 47 as ballast water, and the ballast water is sterilized when the ballast water is discharged out of the ballast tank 47 . In this case, for example, seawater or river water taken as ballast water is transferred to the ballast tank 47 without filtration or sterilization, and is stored in the ballast tank 47. Thereafter, the ballast water is discharged from the ballast tank 47 through the pump 43, the filtration device 44, and the fluid mixing device 46, which are combined with the bactericide supply device 45 shown in Fig. 8, The ballast water is discharged through the ballast water discharge line. The ballast water discharged from the ballast tank 47 toward the outboard side through the ballast water discharge pipe by the pump 43 is filtered by organisms including plankton by the filtration device 44, The microbicide from the microbicide feeder 45 is diffused and homogeneously mixed by the microbubble feeder 46, and organisms and bacteria including plankton remaining after filtration in the discharged ballast water are sterilized and then discharged outboard.

8, in the ballast water treatment apparatus for receiving ballast water according to the present embodiment, for example, seawater or river water taken as ballast water from the seed chest 40 is supplied to the ballast water intake pipe After the organisms including zooplankton and phytoplankton of 30 탆 to 100 탆 or more are captured in the filtration device 44 while being delivered to the ballast tank 47 by the filter 41, It is possible to reliably sterilize organisms including bacterium and plankton remaining in the ballast water after filtration by the sterilizing agent supplied to the device 46. Therefore, even if sea water or river water taken as ballast water is any water quality, To realize the treatment of ballast water satisfying the ballast water standard set by the International Maritime Organization (IMO) . In addition, since the structure of the ballast water treatment apparatus according to the present embodiment is simple and compact, it can be easily applied to existing ships.

<Ballast water treatment system for receiving ballast water>

Next, any one of the static-fluid mixing apparatuses 1, 1 ', 1 "according to the first embodiment, its modifications, and the second embodiment of the present invention described with reference to Figs. 1 to 4 and 6 The ballast water treatment apparatus according to the second embodiment of the present invention for ballast water discharge will be described with reference to Fig.

Fig. 9 schematically shows a configuration of a ballast water treatment apparatus according to a second embodiment of the present invention for discharging ballast water stored in the ballast tank 47. Fig. 9, the ballast water treatment apparatus includes a ballast water discharge pipe (49) through which ballast water discharged from the ballast tank (47) flows and a ballast water discharge pipe (49) through which the sterilizing component remaining in the discharged ballast water Detoxifying agent supplied from the sterilizing component detoxifying agent supplying device (50) interposed in the ballast water discharge line (49) and supplying the detoxifying component non-detoxifying agent to the discharged A fluid mixing device 51 that uniformly mixes the ballast water into the ballast water and the ballast water discharged from the ballast tank 47 interposed in the ballast water discharge pipe path 49 to the outlet of the ballast water discharge pipe path 49 And a pump 52. The outlet of the ballast water discharge line (49) opens to the outer wall of the ship equipped with this ballast water treatment device.

In the present embodiment, as the fluid mixing device 51, the static-fluid mixing device according to the first embodiment, the modification thereof, and the second embodiment of the present invention described above with reference to Figs. 1 to 4 and 6 1, 1 ', 1 ") according to the first embodiment of the present invention, the modification thereof, and the second embodiment of the present invention, which are used as the fluid mixing device 51, Detoxifying agent is supplied from the sterilizing component detoxifying agent supplying device 50 to the auxiliary fluid supply nozzle 3 for any one of the fluid mixing devices 1, 1 ', 1 " 8) as the main fluid, the ballast water discharged from the ballast tank 47 flows.

It is preferable that the sterilizing component of the sterilizing agent supplied to the ballast water at the time of taking in the ballast water is left at a predetermined concentration or more so as to suppress regrowth of bacteria in the ballast water stored in the ballast tank 47. [ In discharging the ballast water from the ballast tank 47 out of the ballast tank 47, the sterilizing component detoxifying agent supplying device 50 is connected to the ballast water to be discharged by using the fluid mixing device 51 interposed in the ballast water discharging duct 49, It is preferable to perform the sterilization component detoxification treatment by supplying and diffusing the sterilization component non-detoxifying agent from the sterilizing component. The drainage of the ballast water from the ballast tank 47 also needs to be completed within a loading time to the ship and diffusion and homogeneous mixing of the sterilizing component detoxifying agent into the ballast water discharged from the ballast tank 47 can be performed in a short time .

When a chlorine-based disinfectant such as sodium hypochlorite or chlorine is used as the disinfectant, the disinfecting component harmless agent supplied to the disinfectant is sodium sulfite (Na ₂ SO ₃ ), sodium bisulfite (sodium bisulfite) : NaHSO ₃ ), and sodium thiosulfate (Na ₂ S ₂ O ₃ .5H ₂ O). Further, even when hydrogen peroxide is used as the bactericide, sodium sulfite, sodium bisulfite (sodium hydrogen sulfite), and sodium thiosulfate can be used as a harmful component harmless agent.

As described above, in the stationary fluid mixing apparatus (1, 1 ', 1 ") according to the first embodiment, its modifications, and the second embodiment of the present invention described above with reference to Figs. 1 to 4 and 6 The sterilizing component detoxifying agent from the sterilizing component detoxifying agent supplying device 50 is quickly diffused into the ballast water discharged from the ballast tank 47 and mixed uniformly Therefore, the ballast water discharged from the ballast tank 47 can be detoxified in a short period of time, and can be discharged outboard of the ballast tank 47. Further, in the first embodiment, the modification thereof, and the second embodiment , The configuration of the ballast water discharging device for discharging ballast water according to the present embodiment can be made compact by using any one of the stationary fluid mixing devices 1, 1 ', 1 " It is easy to apply to existing ships.

<Ballast water intake and ballast water treatment equipment for ballast water supply>

Next, as described above with reference to Fig. 10, the stationary fluid mixing apparatus 1 according to the first embodiment, the modification thereof, and the second embodiment of the present invention described above with reference to Figs. 1 to 4 and 6 , 1 ', 1' ') is used as the fluid mixing device 46 interposed in the ballast water intake duct 41 and also as the fluid mixing device 51 interposed in the ballast water duct 49 The ballast water treatment apparatus according to the third embodiment of the present invention which can cope with both the ballast water intake and the ballast water discharge is explained.

10, the ballast water treatment apparatus according to the third embodiment includes a ballast water intake pipe 41 for introducing, for example, seawater or river water taken as ballast water to the ballast tank 47, , A filtration device (44) interposed in the ballast water intake duct (41) for capturing organisms including plankton in the liquid by filtering the liquid, and organisms and bacteria including plankton present in the liquid after filtration A fluid mixing device 46 for uniformly mixing the sterilizing agent supplied from the sterilizing agent supply device 45 into the liquid after filtration; ), A ballast water discharge line (49) through which the ballast water discharged from the ballast tank (47) flows, and a sterilization chamber Detoxifying agent supplied from the sterilizing component detoxifying agent supplying device (50) interposed in the ballast water discharge pipe (49) and supplying the sterilizing component detoxifying agent to the sterilizing component detoxifying agent supplying device (50) And a fluid mixing device (51) for uniformly mixing the discharged ballast water with the discharged ballast water.

The fluid mixing device 46 interposed in the ballast water intake water conduit 41 and the fluid mixing device 51 interposed in the ballast water discharge conduit 49 are the same and used together. And the ballast water discharge pipe line 49 are intersected at the same fluid mixing device 46 (51).

The pump 43 interposed in the ballast water intake water conduit 41 and the pump 52 interposed in the ballast water discharge conduit 49 are also used for the same purpose and are connected to the ballast water intake conduit 41, And the drain pipe line 49 is also crossed by this same and commonly used pump 43 (52).

Closing valves 61 and 62 are disposed on the upstream side and the downstream side of the pump 43 in the ballast water intake duct 41. On the upstream side and the downstream side of the pump 52 in the ballast water discharge duct 49, Closing valves 63 and 64 are interposed.

When the ballast water is delivered to the ballast tank 47 via the ballast water intake water line 41, the opening and closing valves 63 and 64 of the ballast water discharge pipe 49 are closed and the ballast water discharge pipe 49 is shut off At the same time, the opening / closing valves 61 and 62 of the ballast water intake duct 41 are opened and the supply of the sterilizing component harmless agent by the sterilizing component harmless agent supplying device 50 to the fluid mixing device 46 (51) The supply of the sterilizing agent by the sterilizing agent supply device 45 to the fluid mixing device 46 (51) is carried out instead.

When the ballast water is discharged from the ballast tank 47 via the ballast water discharge pipe line 49, the on-off valves 61 and 62 of the ballast water intake pipe 41 are closed and the ballast water intake pipe 41 is shut off At the same time, the opening and closing valves 63 and 64 of the ballast water discharge pipe 49 are opened, the supply of the sterilizing agent by the sterilizing agent supply device 45 to the fluid mixing device 46 (51) is stopped, The supply of the sterilizing component detoxifying agent by the sterilizing component detoxifying agent supplying device 50 to the mixing device 46 (51) is performed.

Closing valves 61 and 62 of the ballast water intake water passage 41 are opened and the opening and closing valves 63 and 64 of the ballast water discharge pipe passage 49 are closed. By doing this, the same function as that of the ballast water treatment apparatus of the ballast water receiving and receiving apparatus shown in Fig. 8 can be achieved.

Closing valves 61 and 62 of the ballast water intake duct 41 are closed and the opening and closing valves 63 and 64 of the ballast water discharge duct 49 are opened. By doing so, the same function as that of the ballast water treatment apparatus of the ballast water receiving apparatus shown in Fig. 9 can be achieved.

The ballast water between the ballast tank 47 and the fluid mixing device 46 (51) serving as a part of the ballast water intake pipe 41 between the common fluid mixing device 46 (51) and the ballast tank 47, The portion of the discharge pipe passage 49 can be used in combination. In this way, the configuration of the ballast water treatment apparatus becomes more compact, the space required for mounting the ballast water treatment apparatus on a ship can be reduced, and the manufacturing cost of the ballast water treatment apparatus can be reduced .

1, 1 ', 1 ": stationary fluid mixing device 2: mixing member
2A: Spinning projection 3: Sub fluid supply nozzle
4: pipe member (conduit) 5: ring member
5A: inner circumferential surface 5B: bolt through hole
6: flap portion 6A: base end portion
6A-1: Both sides of edge 6B:
6B-1: Arched protruding edge 7: Narrow area
8: aperture 9: fan shape area
10: annular part 11: connection part
12: annular plate 13: auxiliary fluid supply nozzle support tube
14: lid member 14A: through hole
14: Mounting hole 40: Seed chest
41: ballast water intake water pipe 43: pump
44: Filtration device 45: Disinfectant supply device
46: fluid mixing device 47: ballast tank
49: ballast water drainage pipe 50: sterilizing component harmlessizing agent supply device
51: fluid mixing device 52: pump
61, 62, 63, 64: opening / closing valve

Claims (9)

A ring portion 5 concentrically interposed with respect to a conduit through which the main fluid flows; a ring portion 5A projecting from a plurality of positions along the circumferential direction of the ring portion on the inner circumferential surface 5A of the ring portion toward a longitudinal center line of the conduit, And a mixing member (2) that includes a plurality of flap portions (6) for causing the fluid to overheat in the fluid and uniformly mixes the float supplied to the main fluid flowing through the channel with the main fluid using the Karman overheat In a stationary fluid mixing device,
Wherein the ring portion of the mixing member is made of a plate member widening in the radial direction of the ring portion, the inner peripheral surface of the ring portion is flush with the inner peripheral surface of the channel,
Wherein each of the plurality of flaps extends in a radial direction between both edges (6A-1) extending in a radially inward direction and spaced from each other in the circumferential direction and extending between the ends of the opposite edges toward the inside, And an arc-shaped protruding edge (6B-1) protruding toward the longitudinal center line,
Characterized in that an opening (8) defined between the plurality of flaps inside the inner circumferential surface of the ring portion has a narrowing region (7) between the plurality of arcuate projecting edges of the plurality of flaps
Stationary fluid mixing device. The method according to claim 1,
Both side faces of the plurality of flaps 6 facing the longitudinal center line cross at right angles to the longitudinal centerline
Stationary fluid mixing device. The method according to claim 1,
Each of the plurality of flap portions 6 has a proximal end portion 6A adjacent to the ring portion 5 and a protruding end portion 6B including the arcuate protruding end 6B-1, And the end portion is inclined toward the downstream side of the main fluid flowing through the duct relative to the ring portion
Stationary fluid mixing device. The method of claim 3,
The mixing member 2 is provided between the inner peripheral surface 5A of the ring portion 5 and the base end portion 6A of the plurality of flap portions 6 so as to be in contact with the inner peripheral surface of the channel, (10)
Stationary fluid mixing device. 5. The method according to any one of claims 1 to 4,
(3) for supplying the float from the outside of the conduit to the inside of the conduit, wherein the inner end of the float nozzle is mixed in the flow direction of the main fluid in the conduit Is disposed at a position of at least one of the upstream side, the downstream side, and the same position as the mixing member with respect to the member (2)
Stationary fluid mixing device. 6. The method of claim 5,
Wherein each of the side edges 6A-1 of each of the plurality of flap portions 6 has a tapered shape in which a distance between the ring portion 5 and the arc-shaped protruding edge 6B-1 is gradually reduced from the ring portion 5 toward the arc- With
Stationary fluid mixing device. A ballast water intake pipe (41) for guiding the liquid taken as ballast water to the ballast tank (47), a filtration device (44) interposed in the ballast water intake pipe and for filtering the liquid to capture the organisms in the liquid , A sterilizing agent supply device (45) for supplying sterilizing agent for sterilizing organisms and bacteria present in the liquid after filtration, and a disinfectant supplying device (45) for supplying the disinfectant supplied from the sterilizing agent supply device to the filtered liquid And a fluid mixing device (46) for mixing the fluid mixed with the fluid, wherein the fluid mixing device is a stationary fluid mixing device according to any one of claims 1 to 5
Ballast water treatment system for receiving ballast water. (50) for supplying a ballast water discharge pipe (49) through which the ballast water discharged from the ballast tank (47) flows, and a sterilizing component harmlessizing agent supply device (50) for supplying a sterilizing component harmlessizing agent which detoxifies the sterilizing component remaining in the discharged ballast water, And a fluid mixing device (51) interposed in the ballast water discharge pipe and uniformly mixing the sterilizing component detoxifying agent supplied from the sterilizing component detoxifying agent supply device into the discharged ballast water, wherein the fluid mixing device Is a stationary fluid mixing device according to any one of claims 1 to 5
A ballast water treatment device for discharging ballast water. A ballast water intake pipe (41) for guiding the liquid taken as ballast water to the ballast tank (47), a filtration device (44) interposed in the ballast water intake pipe and for filtering the liquid to capture the organisms in the liquid , A sterilizing agent supply device (45) for supplying sterilizing agent for sterilizing organisms and bacteria present in the liquid after filtration, and a disinfectant supplying device (45) for supplying the disinfectant supplied from the sterilizing agent supply device to the filtered liquid , A ballast water discharge pipe (49) through which the ballast water discharged from the ballast tank flows, and a sterilizing component supplying a sterilizing component detoxifying agent which harms the sterilizing component remaining in the discharged ballast water (50) which is disposed in the ballast water discharge pipe passage and is provided with a sterilizing component detoxifying agent supply source The sterilizing agent supplied to the harmless components from and including the fluid mixing device 51 for uniformly mixing the number of the discharged ballast,
The fluid mixing device (46) interposed in the ballast water intake water pipe and the fluid mixing device (51) interposed in the ballast water discharge pipe are the same and used, and the ballast water intake pipe (41) A water drain line (49) is intersected in this same and combined fluid mixing device,
Wherein when the ballast water is delivered to the ballast tank via the ballast water intake pipe, the ballast water discharge pipe is shut off and the supply of the sterilizing component harmless agent by the sterilizing component detoxifying agent supply device to the fluid mixing device The supply of the sterilizing agent by the sterilizing agent supply device to the fluid mixing device is carried out instead,
Wherein when the ballast water is discharged from the ballast tank through the ballast water discharge pipe, the ballast water intake pipe is shut off and the supply of the sterilizing agent to the fluid mixing device by the sterilizing device is stopped, The supply of the sterilizing component detoxifying agent by the sterilizing component detoxifying agent supplying device to the fluid mixing device is performed,
Wherein said fluid mixing device, which is the same and commonly used, is a stationary fluid mixing device according to any one of claims 1 to 5
Ballast water treatment apparatus for ballast water intake and ballast water discharge.

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