JP4889599B2 - Strainer equipment - Google Patents

Description

  The present invention relates to a strainer device, and in particular, is attached to a water intake pipe connected to a suction port of a water intake pump, and is suitable for removing foreign matter such as dust mixed in water taken through the water intake pipe. The present invention relates to a strainer device.

  Conventionally, a water tank is directly connected to the waterway of the hydroelectric power station, and the water led from the waterway to the water tank is sucked up through the intake pipe by the intake pump of the irrigation water facility connected to the water tank. Is supplied to irrigation canals and supplied to irrigation water users via irrigation canals.

In this case, foreign matter such as dust flowing into the water storage tank from the water conduit is removed by a strainer device attached to the tip of the intake pipe, and water not contaminated with foreign matter such as dust is taken in via the intake pipe. It is sucked up by a pump and supplied to the irrigation canal.
JP 2000-234359 A

  On the other hand, in the strainer device configured as described above, when a large amount of foreign matter such as dust adheres to the surface and clogging occurs, the intake amount of the intake pump is greatly reduced, and a predetermined amount of Irrigation water may not be available to users. In such a case, the water supply channel is shut off to stop the generator of the hydroelectric power station, and the intake pump of the water storage tank is stopped to clean the strainer device at the tip of the intake pipe and adhere to the surface of the strainer device. After removing foreign matter such as dust and removing the clogged state of the strainer device, the water breakage is released and the operation of the generator and intake pump is resumed.

  For this reason, it takes time, labor, and expense to clean the strainer device, and a decrease in income is caused when the generator is stopped. Moreover, since it becomes impossible to supply irrigation water for a long time to the user of irrigation water, it will cause a great damage to a user.

  The present invention has been made in view of the above-described conventional problems, and can easily and easily eliminate clogging in a short time and supply irrigation water to people who use irrigation water in a short time. It is an object of the present invention to provide a strainer device that can restart the process and minimize damage to the user.

The present invention employs the following means in order to solve the above problems.
That is, the present invention is a strainer device attached to the tip of a water intake pipe, which is attached to the tip of the water intake pipe in a lateral direction, and a strainer body provided with a plurality of openings communicating with the water intake pipe, and the strainer An opening adjustment member that is fitted on the outside of the main body so as to be rotatable in the circumferential direction of the strainer main body and that can adjust the opening of the strainer main body to an opening corresponding to the rotation amount , and is movable in the vertical direction. And operating means for converting linear motion in the vertical direction into rotational motion and transmitting the rotational motion to the opening degree adjusting member .

According to the strainer device of the present invention, the operating means is moved in the vertical direction, the linear motion in the vertical direction of the operating means is converted into rotational motion and transmitted to the opening adjusting member, and the opening adjusting member is connected to the strainer body. , The opening of the strainer body is adjusted to an opening corresponding to the amount of rotation of the opening adjusting member.
Therefore, when the opening of the strainer body is clogged by foreign matter such as dust mixed in the water, the operating means is moved up and down to rotate the opening adjustment member in the circumferential direction of the strainer body. By repeatedly changing the opening of the strainer body, foreign matters such as dust can be removed, and clogging can be eliminated.
Further, the opening of the strainer body is rotated by the amount of rotation of the opening adjustment member by moving the operating means in the vertical direction and rotating the opening adjustment member in the circumferential direction of the strainer body attached horizontally to the tip of the intake pipe. The opening degree is adjusted according to.

Further, in the present invention, the opening adjustment member is provided with an opening that overlaps each opening of the strainer body, and the opening adjustment member is rotated so that each opening of the opening adjustment member and the strainer body are rotated. The opening degree of each opening of the strainer body may be adjusted by adjusting the degree of overlap of each opening.

According to the strainer device of the present invention, the degree of overlap between the opening of the opening adjusting member and the opening of the strainer main body is determined by moving the operating means in the vertical direction and rotating the opening adjusting member in the circumferential direction of the strainer main body. By adjusting, the opening degree of the strainer body can be adjusted.

Further, in the present invention, the operation means includes an operation member provided so as to be movable in the vertical direction, and a connecting member that converts a linear motion of the operation member in the vertical direction into a rotational motion and transmits the rotational motion to the opening adjustment member. And a restricting member that restricts the movement of the operating member in the vertical direction. The restricting member is provided with a protruding piece provided on the operating member and spaced in the vertical direction. It is good also as consisting of a pair of stopper part which can contact | abut from a direction .

According to the strainer device of the present invention , by moving the operating member in the vertical direction, the linear motion of the operating member in the vertical direction is converted into rotational motion by the connecting member and transmitted to the opening adjusting member, thereby adjusting the opening. The member can be rotated in the circumferential direction of the strainer body. Further, by causing the protruding pieces of the restricting member to contact the pair of stopper portions from above and below, the movement of the operating member in the up and down direction is restricted, and the rotation amount of the opening degree adjusting member is restricted accordingly.

Further, in the present invention, the strainer body has a cylindrical shape with both ends closed, and the opening that penetrates between the inner and outer surfaces is provided at a plurality of locations, and the opening degree that forms the cylindrical shape on the outer side of the strainer body The adjustment member is rotatably fitted, and the opening that penetrates between the inner and outer surfaces may be provided in a portion corresponding to each opening of the strainer body of the opening adjustment member.

According to the strainer device of the present invention, the degree of overlap between the opening of the strainer body and the opening of the opening adjusting member is adjusted by rotating the cylindrical opening adjusting member with respect to the cylindrical strainer body closed at both ends. By adjusting, the opening degree of the strainer body can be adjusted.

As described above, according to the strainer device of the present invention, the operating means is moved in the vertical direction, the linear motion in the vertical direction of the operating means is converted into rotational motion and transmitted to the opening adjustment member, By rotating the opening adjustment member in the circumferential direction of the strainer body, the opening of the strainer body is adjusted to an opening according to the rotation amount of the opening adjustment member.
Therefore, when the opening of the strainer body is clogged by foreign matter such as dust mixed in the water, the operating means is moved up and down to rotate the opening adjustment member in the circumferential direction of the strainer body. By repeatedly changing the opening of the strainer body, foreign matters such as dust can be removed , and clogging can be easily and quickly eliminated.
As a result, for example, when the strainer device is attached to the intake pipe of the intake pump, the stop time of the intake pump due to clogging of the strainer device can be shortened, so that On the other hand, the supply of water can be resumed in a short time, and damage to water users can be minimized.
In addition, when applied to irrigation water by sucking up water from a water tank directly connected to the hydropower station's waterway and using it as irrigation water, the waterway will be shut off if the strainer device becomes clogged. Since the clogging of the strainer device can be eliminated without stopping the generator and without stopping the generator, there is no reduction in revenue due to the stop of the generator.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of a strainer device according to the present invention. FIG. 1 is a schematic view showing an installation state of the strainer device, and FIG. 2 is a perspective view showing the entire strainer device. 3 is an explanatory view showing a small opening state of the opening of the strainer body, FIG. 4 is an explanatory view showing a large opening state of the opening of the strainer body, and FIG. 5 is an explanatory view showing a relationship between the strainer body and the opening adjusting member. .

The strainer device 1 of the present embodiment is applied to, for example, a water intake pump 25 (for example, a pump) in an irrigation water facility that draws water from a water tank 35 directly connected to a water conduit of a hydroelectric power plant. It is effective for removing foreign matter such as dust mixed in water and supplying water that does not contain foreign matter such as dust to the water pump 25. The water sucked up by the water intake pump 25 is irrigated. It is used as irrigation water for agriculture through the irrigation canal.

That is, in the strainer device 1 of the present embodiment, the upper end is connected to the suction port of the intake pump 25 installed at the opening edge of the water storage tank 35, and the lower end is drawn into the water storage tank 35 to A strainer body 2 attached to the lower end of the intake pipe 30 disposed at the bottom, an opening adjusting member 10 fitted on the outside of the strainer body 2 and rotatable in the circumferential direction of the strainer body 2 , and an opening adjustment And operating means 15 for rotating the member 10 in the circumferential direction of the strainer body 2.

  The strainer body 2 has a cylindrical shape with both ends closed, each including a cylindrical body portion 3 and a disk-like lid portion 5 provided integrally with the opening portions at both ends of the body portion 3. The cylindrical main body 3 is integrally attached to the lower end of the water intake pipe 30 disposed at the bottom of the water storage tank 35 so that the cylindrical main body 3 is oriented sideways.

  In this case, an attachment hole 6 that penetrates the inside and outside of the strainer body 2 is provided in the center of the lid 5, and the lower end of the intake pipe 30 is inserted into the attachment hole 6. By connecting the lower end portion to the lid portion 5 integrally, the strainer main body 2 is attached to the lower end portion of the intake pipe 30 in a lateral direction, whereby the inside of the strainer main body 2 and the intake pipe 30 are mutually connected. You will communicate.

  In the body portion 3 of the strainer body 2, openings 4 penetrating between the inner and outer surfaces are provided at a plurality of positions at predetermined intervals in the longitudinal direction and the circumferential direction, and are stored in the water storage tank 35 through the respective openings 4. Water is introduced into the inside of the strainer body 2, and is led from the inside of the strainer body 2 to the suction port of the intake pump 25 through the intake pipe 30.

  Each opening 4 only needs to have a shape that can efficiently guide the water stored in the water storage tank 35 to the inside of the strainer body 2. For example, a square, a triangle, a circle, an oval, an ellipse, etc. In the embodiment, it may be a quadrangular shape).

The opening adjustment member 10 has a cylindrical shape that is larger in diameter than the main body 3 of the strainer body 2 and slightly longer than the main body 3 of the strainer main body 2. Are fitted so as to be rotatable in the circumferential direction.

  In this case, a drop-off prevention means (not shown) is provided between the opening adjustment member 10 and the strainer body 2, and the drop-off prevention means prevents the opening adjustment member 10 from dropping from the strainer body 2. At the same time, the opening adjustment member 10 is prevented from shifting in the axial direction on the peripheral surface of the strainer body 2.

  As the drop-off prevention means, for example, a method of bending both end portions of the opening adjustment member 10 radially inward and locking the bent portions to the surface of each lid portion 5 of the strainer body 2, the opening There is a method of attaching a locking piece to both ends of the adjustment member 10 so as to protrude radially inward and locking the locking piece to the surface of each lid portion 5. However, the present invention is not limited thereto, and any mechanism and structure that can prevent the opening adjusting member 10 from falling off the strainer body 2 may be used.

  A portion of the tubular portion 11 of the opening adjustment member 10 corresponding to each opening 3 of the strainer body 2 has the same shape and substantially the same size as each opening 3 of the strainer body 2 penetrating between the inner and outer surfaces of the tubular portion 11. Each opening 12 of the cylindrical portion 11 of the opening adjustment member 10 corresponds to each opening 4 of the strainer body 2, and each opening 4 of the strainer body 2 and the opening adjustment member. The ten openings 12 overlap each other, and the degree of overlap can be adjusted.

  By adjusting the degree of overlap between each opening 12 of the opening adjustment member 10 and each opening 4 of the strainer body 2, the size of the opening area of each opening 4 of the strainer body 2 is adjusted. In the present embodiment, as shown in FIGS. 3 and 4, each opening 4 of the strainer body 2 is in a small opening state in which about 1/4 of the total opening area, and each opening 4 of the strainer body 2 is opened. Projecting pieces 21 of the operating means 15 to be described later and so that the size of the opening area of each opening 4 of the strainer body 2 is adjusted between the large opening state in which about half of the total opening area is opened. The positions of the pair of stopper portions 22 and 23 are set.

  The operating means 15 converts the linear motion in the vertical direction of the operating member 16 into a rotational motion and transmits the rotational motion to the opening adjusting member 10. The connecting member 17 such as a hinge and a regulating member 20 that regulates the relative movement range of the opening adjustment member 10 by regulating the vertical movement range of the operation member 16 are configured.

The operation member 16 has a lower end connected to one end in the longitudinal direction of the cylindrical portion 11 of the opening adjustment member 10 via a connection member 17, and an upper end pulled out above the water surface in the water tank 35, By grasping the upper end portion of the operating member 16 and moving it in the vertical direction, the linear motion in the vertical direction of the operating member 16 is converted into a rotational motion by the connecting member 17 and transmitted to the opening adjustment member 10. The adjustment member 10 rotates on the circumferential surface of the strainer body 2 in the circumferential direction.

The restricting member 20 includes a protruding piece 21 integrally connected to the upper end portion of the operation member 16, and a pair of stopper portions 22 and 23 provided at predetermined intervals in the vertical direction corresponding to the protruding piece 21, By moving the operating member 16 in the vertical direction and bringing the protruding piece 21 into contact with the upper stopper portion 22 or the lower stopper portion 23, the amount of movement of the operating member 16 in the vertical direction is regulated, and accordingly The range of rotation of the opening adjusting member 10 in the circumferential direction on the circumferential surface of the strainer body 2 is restricted.

In the present embodiment, as described above, each opening 4 of the strainer body 2 has a small opening position where the opening is about ¼ of the total opening area, and each opening 4 of the strainer body 2 has a total opening area. The amount of movement of the operating member 16 in the vertical direction, that is, on the circumferential surface of the strainer body 2 of the opening adjusting member 10 is adjusted so that the opening is adjusted between the large opening position where the opening is about ½. The range of rotation is regulated.

Next, the operation of the strainer device 1 according to the present embodiment configured as described above will be described.
First, in order to take water from the water storage tank 35 directly connected to the water conduit of the hydroelectric power plant, the operating member 16 of the operating means 15 is moved in the vertical direction, and the opening adjusting member 10 is made to follow the operating member 16 and the strainer body. rotate the second circumferential direction, to adjust the degree of overlap between the openings 12 of the opening 4 and the opening adjusting member 10 of the strainer body 2 in the state of small opening degree.

  Then, by driving the water intake pump 25, the water stored in the water storage tank 35 is guided to the inside of the strainer body 2 through each opening 4 of the strainer body 2, and the water intake pipe 30 is connected from the inside of the strainer body 2. Then, the water is led to the water intake port of the intake pump 25, discharged from the water intake port to the irrigation water channel through the discharge port of the water intake pump 25, and supplied to the user through the irrigation water channel. At this time, foreign matter such as dust mixed in the water in the water storage tank 35 is removed by the strainer device 1, and water that does not contain foreign matter such as dust is supplied to the irrigation water channel.

In addition, if water intake from the water storage tank 35 to the irrigation channel continues and a large amount of foreign matter such as dust adheres to the strainer device 1 and the water intake by the water intake pump 25 decreases, the operation of the water intake pump 25 is stopped. Then, the upper end of the operating member 16 of the operating means 15 is grasped, the operating member 16 is moved in the vertical direction, and the opening adjusting member 10 is rotated in the circumferential direction on the peripheral surface of the strainer body 2 by following the operating member 16. , Repeatedly changing the opening of each opening 4 of the strainer body 2 between a small opening and a large opening to remove foreign matter such as dust adhering to the strainer device 1 , The opening 4 is brought into a state where no foreign matter such as dust is attached.

  Then, the operation of the water intake pump 25 is restarted, water intake from the water storage tank 35 is restarted, water is supplied from the water storage tank 35 to the irrigation water channel via the water intake pump 25, and the user of irrigation water is supplied via the irrigation water channel. Supply water.

  In the strainer device 1 according to the present embodiment configured as described above, when the water intake by the water intake pump 25 of the water storage tank 35 is reduced, foreign matter such as dust attached to the strainer device 1 is operated. 15 can be easily removed in a short time, so that the stop time of the intake pump 25 can be shortened, and irrigation water can be supplied to people who use the water in the water tank 35 as irrigation water in a short time. It can be resumed.

  In addition, when removing foreign matter such as dust from the strainer device 1, it is not necessary to cut off the water conduit, so there is no cost associated with the water shut-off operation, and the hydroelectric power station can be cut off by cutting off the water conduit. Since there is no need to stop the generator, there is no loss in revenue due to the generator being stopped.

  In the above description, the example in which the strainer device 1 is applied to the intake pump 25 of the water tank directly connected to the water conduit of the hydroelectric power plant has been described. However, the intake pump 25 used for various other purposes is used. The strainer device 1 according to the present invention may be applied, and in this case, the same operation and effect can be obtained.

It is the schematic which shows the installation state of the strainer apparatus by this invention. It is a perspective view which shows the whole strainer apparatus. It is explanatory drawing which shows the small opening degree state of opening of a strainer main body. It is explanatory drawing which shows the large opening degree state of opening of a strainer main body. It is explanatory drawing which shows the relationship between a strainer main body and an opening degree adjustment member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Strainer apparatus 2 Strainer main body 3 Main-body part 4 Opening 5 Lid part 6 Mounting hole 10 Opening adjustment member 11 Cylindrical part 12 Opening 15 Operation means 16 Operation member 17 Connection member 20 Restriction member 21 Projection piece 22 Stopper part 23 Stopper part 25 Intake pump 30 Intake pipe 35 Reservoir

Claims (4)

A strainer device attached to the tip of the intake pipe,
A strainer body that is attached laterally to the tip of the intake pipe and that has openings communicating with the intake pipe at a plurality of locations, and is fitted on the outside of the strainer body so as to be rotatable in the circumferential direction of the strainer body. And an opening adjusting member capable of adjusting the opening of the strainer main body to an opening corresponding to the amount of rotation and a vertically movable member, and converting the linear motion in the vertical direction into a rotational motion, A strainer device comprising operating means for transmitting to the opening adjustment member . The opening adjustment member is provided with openings that overlap with the openings of the strainer body, and the degree of overlap between the openings of the opening adjustment member and the openings of the strainer body by rotating the opening adjustment member. The strainer device according to claim 1, wherein the opening degree of each opening of the strainer body is adjusted by adjusting the angle. The operating means includes an operating member provided so as to be movable in the vertical direction, a connecting member for converting a linear motion of the operating member in the vertical direction into a rotational motion and transmitting the rotational motion to the opening adjustment member, A restricting member that restricts movement in the direction, and the restricting member is provided with a protruding piece provided on the operation member at an interval in the vertical direction, and the protruding piece can contact from the vertical direction. The strainer device according to claim 1, comprising a pair of stopper portions . The strainer body has a cylindrical shape with both ends closed, and the openings penetrating between the inner and outer surfaces are provided at a plurality of locations, and the opening degree adjusting member having a cylindrical shape is rotatable on the outer side of the strainer body. 4. The strainer device according to claim 2, wherein the opening is provided so as to penetrate between the inner and outer surfaces in a portion corresponding to each opening of the strainer body of the opening adjustment member. .

Images