JP3153557U - Float removal device - Google Patents

Abstract

[PROBLEMS] To enable a skimmer to be set below a surface layer portion even when the surface level of the surface layer portion of a predetermined water area where a floating body removing device is installed is lowered, and to float on the water surface. Provided is a floating substance removing device that stably removes water. A floating substance removing device (1) includes a float (2) suspended on a water surface (12) in a surface layer portion of a predetermined water area, and a float (2) supported by the float (2) so that the height can be adjusted. The skimmer tray 7 that can flow in with the water of the surface layer portion is provided. A pressure feed line main body 3 is connected to the lower side of the skimmer tray 7, and the pressure feed line main body 3 is connected to a pump P as a suction source via a feed hose 11. In the water below the skimmer tray 7, an auxiliary pipe 9 having an auxiliary suction port 10 that is connected to the pressure-feed pipe main body 3 and that can suck water in the underwater area by the pump P is disposed. [Selection] Figure 3

Description

  The present invention relates to a floating substance removing device for removing and removing oil, algae, dust, suspended matter, and the like floating on a water surface in a reservoir, a lake, and the like.

  In reservoirs, lakes, etc., suspended matter such as oil, dust, algae, suspended solids, etc. that floats in the specified water area and floats on the surface layer of the water area flows in along with the water in the surface layer and is removed. A removal device is installed. As a floating substance removal device generally used in the past, as shown in Patent Document 1 or Patent Document 2 below, a plurality of floats floated on the surface of the surface layer of a predetermined water area, and height adjustment with respect to the float A skimmer that is supported in such a manner as to allow a suspended matter in a surface layer portion of a predetermined water area to flow in along with the water in the surface layer portion. The skimmer is connected to a pressure feeding line formed by a pipe, a tube, or the like, and a pump as a suction source is connected to the pressure feeding line. Thereby, the suspended | floating matter flowed into the skimmer is pumped with a water in the pumping line toward the suction source side. The pumped suspended matter is separated from water by a filtration device or a water / oil separation device installed on the suction source side and removed.

JP 10-45089 A JP 2003-80243 A

  By the way, since the height of the skimmer can be adjusted with respect to the float in the conventional floating substance removing device, the skimmer is adjusted to an underwater position slightly below the water surface position of the surface layer portion of the predetermined water area in the initial stage. By doing so, oil, algae, dust, suspended matter, etc. floating on the surface of the surface layer can be allowed to flow into the skimmer.

  However, in a state where the water level in the predetermined water area has once lowered and is below the skimmer, even if the water level rises again, the skimmer does not return slightly below the water surface position of the surface layer portion of the predetermined water area. In such a case, the skimmer had to adjust the height again for the float.

  This is because skimmers are generally called reverse skimmers or funnels, called skimmer trays, and are equipped with buoyancy throughout, and these skimmer trays are often made of synthetic resin material that originally has buoyancy. Probable cause. In addition, since the skimmer is a delicate one that is set and adjusted slightly below 2 to 5 mm from the water surface position of the surface layer part of the predetermined water area, the skimmer may be raised above the water level due to changes over time or slight waves on the water surface. In such a case, the pump as the suction source is supposed to be in an emptying state.

  The present invention has been made paying attention to such a conventional problem, and automatically sets the skimmer below the water surface position of the surface layer portion of the predetermined water area even in a state where the water level has changed somewhat. We have just developed a device for removing suspended solids.

  In other words, the present invention makes it possible to set the skimmer below the surface layer even when the surface level of the surface layer portion of the predetermined water area where the floating body removing device is installed is lowered, etc. The purpose is to stably remove suspended solids.

  In order to achieve the above-mentioned object, claim 1 of the present invention is characterized in that suspended matter such as oil, dust, algae, suspended matter, etc. suspended in a predetermined water area such as a reservoir and a lake and suspended in the surface layer of the water area, In the floating substance removal device that flows in and removes along with the water in the surface layer, the float is floated on the surface of the surface layer in the predetermined water area, and is supported by the float so that the height can be adjusted. A skimmer tray that allows an object to flow in along with the water of the surface layer, and is connected to the lower part of the skimmer tray and extends toward the water in a predetermined water area, and is connected to the suction source from the water in the predetermined water area, The suspended matter that has flowed into the skimmer tray is sucked together with water from the suction port that is opened in the skimmer tray, and can be pumped toward the suction source. Connection with pipeline An auxiliary equipped with an auxiliary suction port having a smaller diameter than the suction port in the skimmer tray and capable of sucking water in the underwater region by a suction source connected to the pumping pipe in the water below the surface layer portion of the predetermined region. And a suspended matter removing device including a pipe.

According to claim 2 of the present invention, the height of the skimmer tray is adjusted with respect to the float so that the skimmer tray is positioned at an underwater position slightly below the water surface position of the surface layer portion of the predetermined water area. This is a device for removing floating substances.

Moreover, in Claim 3 of this invention, when the depth H with respect to the water surface position of the surface layer part of the predetermined water area of the auxiliary suction port in the water under the skimmer tray is the diameter D of the suction port in the skimmer tray Further, the suspended matter removing apparatus according to claim 2, wherein the depth H is set as follows.
H <2D

According to claim 4 of the present invention, the suspended matter removing apparatus according to claim 2, wherein the position of the skimmer tray relative to the water surface position of the surface layer portion of the predetermined water area is set and adjusted to about 2 to 6 mm. Is.

Further, according to claim 5 of the present invention, the diameter D1 of the auxiliary suction port is set to ½ or less of the diameter D of the suction port in the skimmer tray. This is a removal device.

  According to the present invention, the float floating on the surface of the surface layer of the predetermined water area and the height of the float are supported so that the height of the float can be adjusted. A skimmer tray that is connected to the bottom of the skimmer tray and extends toward the water in the predetermined water area, and is connected to the suction source from the water in the predetermined water area and flows into the skimmer tray. The suspended matter is sucked together with water from the suction port that is opened in the skimmer tray, and can be pumped toward the suction source. It is in the water below the skimmer tray and is connected to the pumping conduit. An auxiliary suction port having a smaller diameter than the suction port in the skimmer tray and capable of sucking water in the underwater region by a suction source connected to the pumping line in the water below the surface layer portion of the predetermined region. Since we decided to and an auxiliary conduit, so that the water level of water in the water is sucked from the auxiliary suction port even in a state where the falling below the skimmer tray. As a result, the biasing force in the direction in which the entire skimmer tray is sucked into the water acts on the entire skimmer tray based on the suction force from the suction source. For example, the skimmer tray is set slightly below the water surface position of the surface layer portion of the predetermined water area. Therefore, the skimmer can be set below the surface layer portion, and it is possible to stably remove suspended matters on the water surface.

1 is a front view of a floating substance removing apparatus according to an embodiment of the present invention. It is a top view of the floating substance removal apparatus which concerns on embodiment of this invention. It is a front view which shows the removal apparatus of the suspended | floating matter floated on the water surface and connected to the pump as a suction source. It is a front view which shows the positional relationship of each part of the floating-substance removal apparatus with respect to the water surface position of a surface layer part. It is a front view which shows the state which the water level of a water surface falls with respect to the removal apparatus of a suspended | floating matter. It is a front view which shows the state which the water level of a water surface raises with respect to the removal apparatus of a suspended | floating matter.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. As shown in the plan view of FIG. 2, the floating substance removal apparatus 1 according to the embodiment includes three floats 2 that are separated from each other by 120 degrees with respect to the center O. The float 2 is shown in FIG. It is assumed to be a vertically long lantern type. Each float 2 is made of synthetic resin and filled with air, and the plane center of each float 2 is positioned at the same radial position with reference to the center O of the apparatus 1 shown in FIG.

At the center O of the removing device 1, as shown in FIG. 1, a pressure feed line main body 3 extending in the vertical direction is provided. Three frame pipes 4 extending in the radial direction in a state of being separated from each other by 120 degrees in a state viewed from a plane are connected to a substantially intermediate length position in the vertical direction of the pressure feed pipe main body 3. The tip in the radial direction is bent in a state of being directed upward by 90 degrees, and the float 2 is supported by the tip of the bent frame tube 4.

  That is, a screw shaft 5 disposed in a vertical direction with each float 2 penetrating vertically is disposed at a bent portion at the tip of each frame tube 4. A nut member 6 to be screwed with the shaft 5 is provided. That is, each float 2 can be adjusted in the vertical direction (Z direction) by loosening the nut member 6 with respect to the screw shaft 5, and the float 2 adjusted in position is tightened with the upper and lower nut members 6. It is possible to support and fix the screw shaft 5 so as to be sandwiched. As a result, each float 2 is supported and fixed with respect to the frame tube 4, and by extension, the pressure-feed line main body 3 so that the height can be adjusted vertically.

  A planar circular skimmer tray 7 having an overall inverted conical shape or an inverted bowl shape is connected and fixed above the pumping line main body 3. That is, in the skimmer tray 7, the suction port 8 of the pressure-feed line main body 3 is opened at the center of the plane (center O of the removing device 1).

  An auxiliary pipe 9 is connected to the side of the pressure-feed line main body 3 in an elbow shape and further upwards to the side of the pressure-feed line main body 3 and below the peripheral edge of the skimmer tray 7. . An auxiliary suction port 10 is opened at the tip of the auxiliary conduit 9, and the inner diameter D1 of the auxiliary suction port 10 is the inner diameter of the upper end suction port 8 of the pressure-feed conduit main body 3 disposed in the skimmer tray 7. For D, it is set to 1/2 or less.

  The pressure-feed conduit main body 3 extending in the vertical direction is formed by bending a lower base end portion by 90 degrees, and at the base end portion of the pressure-feed conduit main body 3, the floating substance removing device 1 is a reservoir, In a state where it is suspended in a predetermined water area such as a lake, a feeding hose 11 as a pressure feeding line is connected (see FIGS. 3 and 4). Further, the other end of the feeding hose 11 with respect to the removing device 1 is connected to a pump P as a suction source. The pump P is disposed on the ground in the embodiment.

  As shown in FIGS. 3 and 4, the removal device 1 arranged in a state of floating in the surface layer portion of the predetermined water area is in a state where each float 2 is floated on the water surface 12 of the surface layer portion of the predetermined water area. Here, as shown in FIG. 4, the skimmer tray 7 having an overall inverted conical shape or an inverted bowl shape has a depth of an underwater position whose upper peripheral edge is slightly below the position of the water surface 12 of the surface layer portion of the predetermined water area. The height is adjusted with respect to the float 2 so as to be set and set to H1. That is, the height adjustment is performed by loosening the nut member 6 and adjusting the position of the float 2 up and down with respect to the screw shaft 5 and adjusting the tightening position as described above. Here, the position of the depth H1 of the upper peripheral edge on the skimmer tray 7 with respect to the water surface 12 position of the surface layer portion of the predetermined water area is set to a range of about 2 to 6 mm.

  As a result, floating substances such as oil, dust, algae, and suspended solids floating in a predetermined water area such as a reservoir and a lake are allowed to flow into the skimmer tray 7 together with the water in the surface layer. Is possible.

  The pressure-feed conduit main body 3 connected to the lower side of the skimmer tray 7 extends toward the water in a floating state with respect to the water surface 12 of the removing device 1 and extends from the water in the predetermined water area to the ground. Connected to the feeding hose 11 and connected to a pump P installed on the ground. As a result, the floating substance that has flowed into the skimmer tray 7 as described above is sucked from the suction port that is opened in the skimmer tray 7 together with the water that is also flown into, and the pressure-feed conduit main body 3 and the feed hose 11. The pressure can be sent to the pump P as a suction source via the.

  Further, the water and suspended matter pumped to the pump P are separated from the water and removed by a filtration device or a water / oil separation device connected to the pump P.

  In the floating state with respect to the water surface 12 of the removing device 1 shown in FIG. 4, the auxiliary conduit 9 is located in the water below the skimmer tray 7 and in the water below the surface layer portion of the predetermined region from the auxiliary suction port 10 at the upper end portion thereof. The water in the underwater region can be sucked by the pump P. That is, the water sucked from the auxiliary suction port 10 can be pumped toward the pump P via the pumping line main body 3 and the feeding hose 11.

  Here, the depth H (see FIG. 4) with respect to the water surface 12 position of the surface layer portion of the predetermined water area of the auxiliary suction port 10 in the water below the skimmer tray 7 is when the inner diameter of the suction port 8 in the skimmer tray 7 is D. And H <2D. Further, the inner diameter D1 of the auxiliary suction port 10 is set to a half or less than the inner diameter D of the suction port 8 in the skimmer tray 7.

  By removing the removing device 1 from the water surface 12 in this way and operating the suction of the pump P, the removal is performed as shown in FIG. 6 from the state where the water level of the water surface 12 is lowered with respect to the removing device 1 as shown in FIG. Even if the water level of the water surface 12 rises with respect to the device 1, it can be operated as follows.

  First, as shown in FIG. 4, in the state where the upper peripheral edge of the skimmer tray 7 is set to the depth H1 (usually about 2 to 6 mm) of the underwater position slightly below the position of the water surface 12, as described above. The floating substance floating in the surface layer portion of the predetermined water area flows into 7 and is removed. However, from this state, as shown in FIG. 5 (A), the water level on the surface 12 of the surface layer falls below the upper peripheral edge of the skimmer tray 7, and as shown in FIG. 5 (B), the water level on the water 12 becomes auxiliary suction. When the pump 10 is lowered from the port 10, the suction by the pump P is in an emptying state, and the pumping pipe main body 3 and the feeding hose 11 are not pumped to the pump P side as a suction source of water and suspended matters. It becomes a state.

  Subsequently, as shown in FIG. 6A from the state shown in FIG. 5B, when the water level of the water surface 12 of the predetermined water area surface layer portion gradually rises, In the removing device without the auxiliary suction port 10, it is difficult to return to the original state in which the water level of the water surface 12 is positioned at the depth H1 of the underwater position slightly below the skimmer tray 7 as shown in FIG. It was.

  In contrast, in the removing device 1 according to the present embodiment, when the water level of the water surface 12 rises above the auxiliary suction port 10 as shown in FIG. In the state where the water is sucked by the operation of the pump P and the water level of the water surface 12 rises thereafter, the original state where the position of the upper peripheral edge of the skimmer tray 7 is set slightly lower than the water level of the water surface 12 ( It is possible to return to the state of FIG. This is based on the suction force generated by the operation of the pump P, and is considered to be based on the biasing force acting in the direction in which the entire skimmer tray 7 is sucked into the water.

  This phenomenon is particularly effective when the water level of the water surface 12 repeatedly rises and falls between the state shown in FIG. 5 (A) and the state shown in FIG. 6 (B). Ripple or external force is applied to the entire removal device 1 (for example, an obstacle collides), the upper peripheral edge of the skimmer tray 7 is positioned above the water level of the water surface 12, and the water level of the water surface 12 is auxiliary suctioned It is effective in a state located above the mouth 10.

  That is, in such a state, water in the water is sucked from the auxiliary suction port 10 even when the water level is lowered below the upper peripheral edge of the skimmer tray 7, and the inner diameter D1 of the auxiliary suction port 10 is also obtained. Is set to be less than or equal to one-half of the inner diameter D of the suction port 8, based on the suction force from the pump P, a large biasing force in the direction of being sucked into water is applied to the entire skimmer tray 7. Become. As a result, as shown in FIG. 6B, the upper peripheral edge of the skimmer tray 7 can be quickly and automatically returned to the original state slightly below the position of the water surface 12 of the water surface layer. It is possible to stably remove the suspended solids.

  Furthermore, in the said embodiment, in the state which floated the apparatus 1 with respect to the water surface 12, the depth H with respect to the water surface 12 position of the water surface layer part of the auxiliary suction port 10 in the water under the skimmer tray 7 is set in the skimmer tray 7. When the inner diameter D of the suction port 8 is set, H <2D is set. This is a design effect found by an experiment conducted by the inventor of the present application. In this way, the operation of the pump P causes a moderate amount of surface water toward the suction port 8 in the water area at the upper peripheral edge of the skimmer tray 7. The phenomenon that a special eddy current is generated can be seen, and the suspended matter can be collected more efficiently. This phenomenon is probably caused by the fact that when the auxiliary suction port 10 that sucks water in the water and the suction port 8 that sucks a larger amount of water are closer to each other than the auxiliary suction port 10, an appropriate turbulent flow is generated in the tray 7. It is presumed that there is a cause in the upward generation, and when the inventors of the present application experimented with the depth H and the inner diameter D of the suction port 8 set to H> 2D, generation of eddy current was observed. However, there was a phenomenon that the collection efficiency of suspended solids was reduced accordingly.

  As described above, the floating substance removal apparatus according to the present invention can be used by being suspended in a predetermined water area such as a reservoir or a lake, and oil, dust, algae, suspended matter floating in the surface layer of the water area. It is possible to flow in and remove the suspended matter together with the water of the surface layer, so that oil removal from oil-contaminated lakes and lakes that occur in large quantities, which has recently been regarded as a problem, can be removed continuously and efficiently. Can be done.

1 Floating substance removal device 2 Float 3 Pressure feed line main body (pressure feed line)
4 Frame tube 5 Screw shaft 6 Nut member 7 Skimmer tray 8 Suction port 9 Auxiliary conduit 10 Auxiliary suction port 11 Feed hose (pressure feed conduit)
P pump (suction source)
12 Water surface

Claims (5)

Floating substance removal device that floats in a predetermined water area such as a reservoir or lake, floats on the surface layer of the water area, such as oil, dust, algae, suspended matter, etc. In
A float that floats on the surface of the surface layer of a given water area;
A skimmer tray that is supported so as to be height-adjustable with respect to the float, and that allows floating matter in a surface layer portion of a predetermined water area to flow together with water in the surface layer portion;
Connected to the lower part of the skimmer tray and extended toward the underwater of the predetermined water area, connected to the suction source from the underwater of the predetermined water area, and opened the floating matter flowing into the skimmer tray with the water into the skimmer tray A suction line that sucks from the suction port and enables pumping toward the suction source;
By a suction source connected to the pressure feeding line in the water below the skimmer tray, connected to the pressure feeding line, smaller in diameter than the suction port in the skimmer tray, and connected to the pressure feeding line in the water below the surface layer portion of the predetermined area. An auxiliary pipe line having an auxiliary suction port capable of sucking water in the underwater region;
A suspended matter removal apparatus comprising:   The suspended matter removing apparatus according to claim 1, wherein the skimmer tray is adjusted in height with respect to the float so as to be positioned at an underwater position slightly below a water surface position of a surface layer portion of a predetermined water area. When the depth H with respect to the water surface position of the surface layer portion of the predetermined water area of the auxiliary suction port in the water below the skimmer tray is set to the diameter D of the suction port in the skimmer tray, the depth H is set as follows: The suspended matter removing apparatus according to claim 2, wherein the suspended substance is removed.
H <2D   The apparatus for removing floating substances according to claim 2, wherein the position of the skimmer tray with respect to the water surface position of the surface layer portion of the predetermined water area is set and adjusted to about 2 to 6 mm.   The apparatus for removing floating substances according to claim 1, wherein the diameter D1 of the auxiliary suction port is set to ½ or less of the diameter D of the suction port in the skimmer tray.

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