JP3923710B2 - Water sampling equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water sampling device suitable for sampling water at a location where the water level fluctuates, such as a water purification plant or a sewage treatment plant, and in particular, a water sampling unit is held in a float to collect surface water or water of a predetermined depth. The present invention relates to a water sampling device that can
[0002]
FIG. 4 shows a front view of a conventional water sampling device, wherein 1 is a water sampling section, 11 is a water sampling port of the water sampling section 1, 2 is a water sampling outlet, and 21 is a water sampling outlet 2. An attached water absorption pump, 22 is a water sampling outlet of the water sampling outlet 2, 7 is a column supporting the water sampling part 1 and the water sampling part 2, S is a floating structure such as a water purification tank, and W is a water surface. Each is shown. The water sampling port 11 is opened in the water below the water surface W, and the other end is connected to the water sampling part 2. Accordingly, by driving the water absorption pump 21, the water below the water surface W can be collected from the water sampling outlet 22 via the water sampling part 1 and the water sampling part 2.
[0003]
By the way, the water sampling device of FIG. 4 has a constant pipe length of the water sampling section 1, and is fixed to the side wall of the floating structure S by the support column 7, so that the water surface W of the water sample to be sampled varies. Cannot perform stable water sampling. Even if the inundation length of the water sampling section 1 is increased in consideration of the fluctuation range of the water surface W, there is a problem that the water quality cannot be inspected at a fixed point because the water level at the sampling point constantly changes. Further, when inspecting the type and amount of surface water on the water surface W, oil floating on the water surface W, or other foreign matters, it is necessary to collect these floating materials together with the surface water. There is also a problem that cannot be done because it is fixed.
[0004]
Japanese Patent Application Laid-Open No. 58-210666 discloses a technique for inspecting water at a certain water level by fixing a water quality meter to such a float by utilizing the property that the float always floats on the water surface. However, the above publication does not disclose a technique for collecting water at a certain water level.
[0005]
[Problems to be solved by the invention]
In view of the above situation in the prior art, an object of the present invention is to provide a water sampling device that can collect surface water or water of a desired water level even if the water level fluctuates.
[0006]
[Means for Solving the Problems]
The water sampling apparatus according to the present invention includes (1) a float, a water sampling part having a water sampling port held by the float and opening at or below the surface of the water, a water extraction part installed in the water structure, and the above sampling. A telescopic water pipe that connects the water part and the water sampling / extraction part is provided.
(2) In the above (1), the water supply pipe is a spiral pipe that can be extended to a length corresponding to at least the maximum height difference between the water collection part and the water extraction part.
(3) In the above (1), the water sampling portion is provided with a water absorption pump.
(4) In the above (1), the water pipe is provided with a reinforcing wire for preventing breakage due to overextension.
(5) In the above (1), the water sampling section is provided with an overturn prevention device for preventing overturning on the water.
(6) In the above (5), the overturn prevention device is connected to the water sampling section extending downward from the pulley, the pulley holding arm extending from the water structure to the water, the pulley held by the pulley holding arm, and the pulley. It is a pulley apparatus provided with a wire.
(7) In the above (1), a separation device is provided for holding the water sampling part on the water separated from the water structure.
(8) In the above (7), the separation device is a support arm that supports a part of the water supply pipe extending from the water sampling portion in a horizontal direction or a direction close thereto.
(9) In the above (1), the float is connected to the floating structure by an elastic connecting member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a front view for explaining Embodiment 1 in the water sampling apparatus of the present invention. In FIG. 1 and in the following drawings, the same parts are denoted by the same reference numerals. In FIG. 1, 1 is a water sampling unit, 2 is a water sampling / extracting unit, 21 is a water absorption pump attached to the water sampling / extracting unit 2, 3 is a spiral tube as an example of a telescopic water supply tube, 4 is a reinforcing wire, Reference numeral 5 denotes a float, 6 denotes a helical cable as an example of an elastic connecting member, 7 denotes a support, S denotes a water structure, and W denotes a water surface.
[0008]
The water sampling device of the present invention is not limited to the water of a water purification plant or a sewage treatment plant, but can be river water, lake water, seawater, or other various waters to be inspected. In addition to tanks such as the water purification tank described above, rivers, lakes, sea dikes, wharves, ships, quay walls, and the like may be used.
[0009]
The water sampling unit 1 is, for example, a tubular body, one end of which is a water sampling port 11, and the other end has a joint unit 12. The water sampling unit 1 is held by the float 5 so that the water sampling port 11 opens at a position at a desired depth below the water surface W or the water surface W. As long as the float 5 has a buoyancy to hold the water sampling unit 1 on the water surface W as shown in FIG. 1 against the weight applied thereto, the structure and constituent materials thereof are arbitrary. For example, a hollow metal can or a foamed plastic is exemplified. The method for holding the water sampling section 1 by the float 5 may be arbitrary. For example, when the float 5 is a metal can, the side wall of the metal can may be screwed using a U-shaped fitting or the like. When the part 1 is a metal tube, it may be welded to the side wall of the metal can. When the float 5 is a foamed plastic plate, a dropper (not shown) is provided in the water sampling section 1 to insert and penetrate the foamed plastic plate so that the hook contacts the surface of the foamed plastic plate. May be.
[0010]
The water collection / removal part 2 is a pipe body provided with a water absorption pump 21, has a joint part 23 at one end thereof, and the water discharge part of the water absorption pump 21 serves as a water extraction / removal port 22. In addition, the water sampling portion 2 is supported by a support column 7 installed on the floating structure S near the joint portion 23.
[0011]
One end of the spiral tube 3 is connected to the water sampling portion 2 by the joint portion 23, and the other end is connected to the water sampling portion 1 by the joint portion 12. On the other hand, the height of the water sampling portion 2 is normally unchanged. Therefore, as the helical tube 3, at least the length corresponding to the maximum height difference of the water level of the water surface W can be extended, and generally inactive to the water to be inspected, such as polyethylene, polypropylene, An organic resin such as nylon or polyester, rubber such as ethylene-propylene copolymer rubber, chloroprene rubber or acrylonitrile-butadiene rubber, or other organic polymer is used.
[0012]
Since the spiral tube 3 formed of the organic resin or rubber is rich in flexibility, it is expanded by various external forces such as strong winds in addition to expansion / contraction based on fluctuations in the water surface W, and breaks when the expansion becomes excessive. Sometimes. The reinforcing wire 4 serves to protect or prevent the spiral tube 3 from breaking by suppressing or preventing such overextension, and is wound on the spiral tube 3 at the same winding pitch as the spiral tube 3. The reinforcing wire 4 is preferably a high mechanical strength metal wire such as an iron wire, a steel wire, or a piano wire. The reinforcing wire 4 is not limited to the winding method shown in FIG. 1, and may be applied by any method capable of performing the above-described reinforcing action on the helical tube 3 in a state that does not hinder the necessary expansion and contraction of the helical tube 3. .
[0013]
The connection between the joint portion 12 or the joint portion 23 and the spiral tube 3 may be any structure or method that can be connected to each other so that the water to be inspected supplied by the spiral tube 3 does not leak. A connection using a tubular joint of a structure, a one-touch joint, or the like can be exemplified.
[0014]
Therefore, in the water sampling device shown in the first embodiment, the positions of the float 5 and the sampling port 11 fluctuate up and down following the change even if the water level of the water surface W of the water to be inspected changes greatly over time. And since the water collection part 1 and the water extraction part 2 are connected by the elastic spiral tube 3, surface water or the water of a desired water level can be extract | collected.
[0015]
The float 5 is connected to the floating structure S by the spiral cable 6, and therefore, it is prevented from flowing away from the floating structure S even if there is a sudden water flow or the like at the sampling site. Thus, as the spiral cable 6, a cable having a length that allows the float 5 to float on the water surface W when extended even if the water surface W fluctuates is used. For example, a metal such as iron, copper, aluminum, or the like Spirals made of organic resin or rubber are used.
[0016]
Embodiment 2. FIG.
FIG. 2 is a front view for explaining Embodiment 2 of the water sampling device of the present invention. In FIG. 2, 8 is a pulley apparatus as an example of the fall prevention apparatus. The pulley device 8 is attached to one end of the pulley holding arm 81, which is supported on the column 7 in a cantilever state by being screwed to the column 7 installed in the water structure S and extends on the water. The wire winder 82, a pulley 83 attached to the other end of the pulley holding arm 81, and a wire 84. The wire winder 82 and the pulley 83 are rotatably attached to the respective rotation shafts, and the wire 84 extends from the wire winder 82 along the pulley holding arm 81 and extends horizontally to the pulley 83. Then, it turns downward and passes through the inside of a portion of the spiral tube portion 32 extending downward in the spiral tube 3 and is connected to the joint portion 12 of the water sampling portion 1. Accordingly, by rotating the wire winder 82 counterclockwise in the drawing, the wire 84 can be brought into a tensioned state, and when rotated in the clockwise direction, the wire 84 can be brought into a relaxed state.
[0017]
Even if the wire 84 is held in a relaxed state, the float 5 is always kept floating on the water surface W based on the stretchability of the spiral tube 3, but the wire 84 is lifted from the water surface W. When it is brought into a tension state within a range, the spiral tube portion 32 and the water sampling portion 1 connected to the spiral tube portion 32 can be kept in a straight line or a state close thereto, and as a result, the water sampling portion 1 and the float 5 are prevented from falling on the water. can do. Further, when the water flow is free from wind, the float 5 and the water sampling unit 1 can be prevented from moving in the horizontal direction. The effect of preventing the horizontal movement is further enhanced when the float 5 is moored by the helical cable 6. Even if the wire 84 is connected to an appropriate portion of the water sampling portion 1 or the float 5 without passing through the inside of the spiral tube portion 32 extending in the vertical direction of the spiral tube 3, the same effect as described above can be obtained. can get. Further, the pulley holding arm 81 can be provided separately from the spiral tube portion 31 extending in the horizontal direction in the spiral tube 3, and in this case, the maintenance of both the pulley holding arm 81 and the spiral tube 3 is easy. There is also.
[0018]
Embodiment 3 FIG.
FIG. 3 is a front view for explaining Embodiment 3 of the water sampling apparatus of the present invention. In FIG. 3, reference numeral 9 denotes a support arm as an example of a separation device that holds the water sampling unit 1 on the water separated from the water structure S. The support arm 9 includes a wide hub 91 and an arm 92 that is integrally attached to the hub 91 and slightly narrower than the hub 91. The support arm 9 is supported in a cantilevered state on the support column 7 by screwing the hub 91 to the support column 7, and the arm 92 is a part of the spiral tube 3 that extends from the water sampling portion 2. It is inserted inside the spiral of the portion 31 and supports the spiral tube portion 31 in a horizontal direction or a direction close thereto.
[0019]
The stretchable water supply pipe such as the spiral pipe 3 has flexibility as described above, and therefore tends to hang down from the joint portion 23 of the water sampling portion 2 due to its flexibility and its own weight. The float 5 tends to approach or contact the side wall S <b> 1 of the water structure S due to the sagging phenomenon. This tendency is particularly noticeable for the highly flexible organic resin and rubber spiral tube 3. By the way, the water to be inspected is normally collected on the side surface S1 of the floating structure S or at a location slightly away from the side surface S1. In general, the latter is more common. Therefore, when water sampling is performed at a location slightly apart from the side surface S1 of the floating structure S using the spiral tube 3 that tends to hang down, it is necessary to employ a support means for the spiral tube 3 that prevents the sag from falling. Necessary. As described above, the arm 92 of the support arm 9 is inserted into the spiral of a part of the spiral tube portion 31 extending from the water sampling portion 2 of the spiral tube 3 so that the spiral tube portion 31 extends in the horizontal direction or a direction close thereto. Since the above-mentioned sag is prevented by supporting it, it acts as the above-mentioned supporting means.
[0020]
In the third embodiment, substantially the same pulley device 8 employed in the second embodiment is attached to the support arm 9. That is, the pulley device 8 includes a support arm 9 that replaces the pulley holding arm 81 in the second embodiment, a wire winder 82 attached to one end of the support arm 9, and a pulley 83 attached to the other end of the arm 92. , And a wire 84. The wire winder 82 and the pulley 83 are rotatably mounted around each rotation shaft, and the wire 84 extends from the wire winder 82 and extends horizontally along the arm 92 to reach the pulley 83. Then, the direction is changed downward and passes through the inside of a portion of the helical tube portion 32 extending downward in the helical tube 3 and is connected to the joint portion 12 of the water sampling portion 1. Accordingly, by rotating the wire winder 82 counterclockwise in the drawing, the wire 84 can be brought into a tensioned state, and when rotated in the clockwise direction, the wire 84 can be brought into a relaxed state. Reference numeral 93 denotes a pulley mounting portion branched from the arm 92.
[0021]
The water sampling unit 1 and the float 5 are connected to the floating structure S by attaching the pulley device 8 to the support arm 9 that supports the spiral tube unit 31 in a horizontal direction or a direction close thereto and prevents the spiral tube unit 31 from drooping. The water sampling unit 1 can be held in a stable posture at a desired location slightly away from the side surface S1 without falling down.
[0022]
【The invention's effect】
As described above, the water sampling device of the present invention includes: (1) a float, a water sampling unit that is held by the float and opens at or below the water surface, a water sampling / extracting unit installed in a floating structure, and the above sampling unit. An elastic water pipe that connects the water section and the water sampling / withdrawing section is provided, and (2) the water pipe extends to a length corresponding to at least the maximum height difference between the water sampling section and the water sampling / extracting section. For example, since it is a spiral tube, the position of the float and the water sampling section may fluctuate up and down following the change even if the water level of the water surface of the test water changes greatly over time, and the water sampling section Since the water collection / removal part is connected to each other by a telescopic water supply pipe such as a spiral pipe, surface water or water of a desired water level can be collected from the water collection part.
[0023]
(3) If the water collection / extraction unit is equipped with a water absorption pump, the water to be inspected can be collected easily by the water absorption pump regardless of the height difference between the water extraction / extraction unit and the water extraction unit. it can.
[0024]
Further, (4) the water pipe is provided with a reinforcing wire that prevents breakage due to overextension, so the water pipe is formed of an organic resin or rubber, and has excellent stretchability but mechanical strength. Even if a material that is not so strong is used, overstretching is prevented by the reinforcing wire and it is avoided from breaking.
[0025]
Also, (5) a tipping prevention device for preventing the water sampling unit from tipping over the water, for example, (6) a pulley holding arm extending from the water structure to the water, a pulley held by the pulley holding arm, and downward from the pulley When a pulley apparatus including a wire extending and connected to the water sampling unit is provided, the water sampling unit 1 can always be held upward by bringing the wire into a tensioned state. It is possible to prevent the section and the float from falling on the water. Further, when there is no wind in the water flow, it is possible to prevent the float and the water sampling section from moving in the horizontal direction. Further, the pulley holding arm can be provided separately from the spiral tube. In this case, there is an advantage that both the pulley holding arm and the helical tube can be easily maintained.
[0026]
Further, (7) a separation device for holding the water collection unit on the water separated from the water structure, for example, (8) a support arm for supporting a part of the water supply pipe extending from the water extraction unit horizontally or in a direction close thereto. If this is the case, the telescopic water pipe such as a spiral pipe is generally flexible, so that it can be prevented from drooping when it hangs down near the watering side of the water structure due to its flexibility and its own weight. The float and the water sampling section are held at a location slightly away from the water-filled side surface, and water sampling at that location becomes possible.
[0027]
Furthermore, (9) when the float is connected to the floating structure by means of a telescopic connecting member, it is prevented that the float is separated from the floating structure even if there is a sudden flow of water at the sampling point. Is done.
[Brief description of the drawings]
FIG. 1 is a front view of a first embodiment of the present invention.
FIG. 2 is a front view of a second embodiment of the present invention.
FIG. 3 is a front view of Embodiment 2 of the present invention.
FIG. 4 is a front view of a conventional example.
[Explanation of symbols]
1 sampling section, 2 sampling section, 21 water absorption pump, 3 spiral tube,
4 reinforcing wires, 5 floats, 6 spiral cables, 7 struts,
8 pulley device, 81 pulley holding arm, 82 wire winder,
83 pulley, 84 wire, 9 support arm, S water structure.

Claims (9)

A float, a water sampling part having a water sampling port held by the float and opening at or below the surface of the water, a water sampling part installed in the floating structure, and connecting the water sampling part and the water sampling part A water sampling device provided with a telescopic water pipe. 2. The water sampling device according to claim 1, wherein the water supply pipe is a spiral pipe that can be extended to a length corresponding to at least a maximum height difference between the water collection section and the water extraction section. The water sampling apparatus according to claim 1, wherein the water sampling section includes a water absorption pump. The water sampling apparatus according to claim 1, wherein the water supply pipe is provided with a reinforcing wire for preventing breakage due to overextension. The water sampling device according to claim 1, wherein the water sampling section includes a tipping prevention device that prevents the tipping over the water. The fall prevention device is a pulley device including a pulley holding arm extending from the water structure to the water, a pulley held by the pulley holding arm, and a wire extending downward from the pulley and connected to the water sampling unit. The water sampling device according to claim 5. The water sampling device according to claim 1, further comprising a separation device that holds the water sampling unit on the water separated from the water structure. 8. The water sampling device according to claim 7, wherein the separation device is a support arm that supports a part of the water supply pipe extending from the water sampling / extracting portion in a horizontal direction or a direction close thereto. The water sampling apparatus according to claim 1, wherein the float is connected to the floating structure by an extendable connecting member.

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