JP3955994B2 - Cleaning method and apparatus for deep well pipe - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention removes dirt from deep well pipes for use in snow extinguishing equipment, industrial use, etc., and clogging occurs due to mud and other foreign matters adhering to the strainer provided in the deep well pipe, making it difficult for water to rise. The present invention relates to a method and a cleaning apparatus for cleaning the strainer.
[0002]
[Prior art]
There are deep wells in places in the city, but the strainers of these deep well pipes are so fine that foreign matter such as mud, sand, rust, and algae adhere to them, causing clogging. As a result, it is difficult for water to rise, and the effect as a deep well is lost. There are relatively few clogged deep wells used every day. For example, in the case of deep wells for snow-melting equipment, mud in the deep well pipe during periods when water is not used, because it is used only during the winter. And other foreign objects will adhere.
[0003]
Foreign matter such as adhering mud dries and hardens, causing clogging when used, making it difficult for water to rise. After many years of repeating this, the strainer has been washed when the water pressure has weakened. However, the conventional strainer cleaning method for deep well pipes can be cleaned by inserting a wire brush and moving the wire brush up and down, or by pouring water into the deep well pipe and moving it up and down with a pump. It is moved to and is washed by water pressure.
[0004]
However, it is not possible to remove mud and other foreign substances that have penetrated deep into the strainer by simply rubbing the strainer surface with a wire brush or moving the water in the vertical direction. That is, the clogging that has entered the hole of the strainer cannot be sufficiently eliminated. Further, the conventional method cannot perform sufficient cleaning, and takes time and increases the cleaning cost.
[0005]
[Problems to be solved by the invention]
As described above, the conventional method for cleaning the strainer of the deep well pipe has the above-described problems. The problem to be solved by the present invention is this problem, and provides a cleaning method and a cleaning apparatus that can be quickly cleaned at a low cost and can remove foreign matter that has entered deep into the hole of the strainer.
[0006]
[Means for solving the problems]
The cleaning apparatus of the present invention has a frame, and a plurality of injection nozzles are attached in pairs to the lower end of the frame, and water sent from the ultra-high pressure water hose is injected at high speed from the injection nozzle. It can be rotated using the jet power. Here, the injection nozzle can be attached to and detached from a rotating body attached to the frame, and an injection nozzle having an appropriate length is used according to the inner diameter of the deep well pipe.
[0007]
Further, a shielding plate is horizontally attached to the upper end of the frame to block the water sprayed from the spray nozzle from rising upward. That is, the water pressure acting on the inner surface of the deep well can be increased by blocking the escape place of the high-pressure water jetted from the nozzle. A hole through which the ultra-high pressure water hose is inserted is formed at the center of the shielding plate. The size of the hole is larger than that of the ultra-high pressure water hose, and a gap remains. The shielding plate can block the water of the spray nozzle, but by forming a hole in the center and forming a gap with the ultra high pressure water hose, mud and sand rise with water from this gap and the shielding plate Deposit on top.
[0008]
The present invention can be used as a guideline for observing the state of washing of the deep well tube by observing the state of mud or sand that is volumed on the shielding plate. Of course, the shielding plate is sized so that at least a large gap does not occur between the inner surface of the deep well pipe. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.
[0009]
【Example】
FIG. 1 shows a cleaning operation in which the cleaning device 5 is lowered onto the deep well pipe 1 to remove dirt adhering to the inner surface of the deep well pipe. The ultra-high pressure water hose 2 wound around the drum of the ultra-high pressure washing car 3 is rewound and wound around the pulley 4 arranged just above the deep well, and the ultra-high pressure water hose 2 is lowered straight into the deep well pipe. .
[0010]
A cleaning device 5 is attached to the lower end of the ultra-high pressure water hose 2, and the cleaning device 5 is provided with a rotating spray nozzle, and is attached by spraying ultra-high pressure water onto the inner surface of the deep well pipe. Can be washed off. In general, the cleaning operation is performed while the cleaning device 5 is lowered to the bottom of the deep well pipe 1 while being lifted upward from the bottom. In this case, when a part of the deep well pipe 1 is damaged, it is less troublesome to perform the cleaning operation while lifting it upward from the bottom.
[0011]
A strainer is provided at an appropriate position of the deep well pipe 1, and groundwater flows into the deep well through the strainer and accumulates. FIG. 2 is a specific example showing a strainer provided in a part of the deep well pipe 1, and the strainer has a cylinder having a large number of holes 6, 6,. Are provided at equal intervals, and further, windings 8 are wound around the outer periphery of the pillow wires 7, 7 with a slight gap therebetween.
[0012]
Therefore, groundwater can flow into the deep well pipe through a slight gap formed in the strainer. The inner peripheral surface of the deep well pipe 1 and the strainer provided on this part are particularly contaminated, and the slight gaps in the winding 8 and the small holes 6, 6. Will not pass through the strainer and into the deep well. Therefore, the cleaning device 5 of the present invention can remove not only dirt adhering to the inner peripheral surface of the deep well tube 1 but also mud and sand clogged in the gaps between the strainer holes 6, 6.
[0013]
FIG. 3 shows an embodiment showing the cleaning apparatus 5 of the present invention. The cleaning device 5 is connected to the lower end of the ultra-high pressure water hose 2, but the frame 9 is configured by connecting the upper plate 10 and the lower plate 11 with four substantially U-shaped crosspieces 12, 12. A shielding plate 13 is attached on the top 10. A connecting tool 15 is attached to the lower plate 11 of the frame 9 to connect the super high pressure water hose 2. A rotating body 14 is rotatably attached to the lower side of the lower plate 11.
[0014]
Here, the specific attachment structure of the rotating body 14 is not particularly limited, and the injection nozzles 16 are attached to the four directions of the rotating body 14 and extend outward. A hole communicating with the connector 15 and the rotating body 14 is formed, and the water flowing through the ultra-high pressure water hose 2 can pass through the connector 15 and the rotating body 14 and be jetted from the injection nozzle 16.
[0015]
Here, the two injection nozzles 16b and 16b are located on the same line, but the other two injection nozzles 16a and 16a are displaced from the center of the rotating body 14, and thus the injection nozzles 16a and 16a. The rotating body 14 is rotated by the reaction force of the jet water jetted from. Therefore, the four injection nozzles 16a, 16a, 16b, and 16b can spray water on the inner surface of the deep well pipe evenly while rotating.
[0016]
In the cleaning apparatus shown in FIG. 3, the injection nozzles 16a and 16a are displaced from the center in order to rotate the rotating body 14. For example, as shown in FIG. If it is used, it is not necessary to mount it at a position shifted from the center of the rotating body 14. When the tip is bent, the jet direction of the jet water is not the radial direction, but a torque that rotates the rotating body 14 is generated by inclining the radial direction.
[0017]
The shielding plate 13 attached to the upper plate 10 of the frame 9 is provided with a pad 17 on the outer periphery thereof so as to be in contact with the inner surface of the deep well tube 1 so as not to generate a gap. The pad 17 is made of rubber, urethane, or the like, and is made of a soft material that does not get scratched even when it contacts the inner surface of the deep well tube 1. The ultrahigh pressure water hose 2 is connected to the connector 15 through the upper plate 10 from a hole penetrating in the center.
[0018]
By the way, as shown in FIG. 1, the cleaning device 5 is lowered deep into the deep well pipe 1 and rotates while jetting ultrahigh pressure water from the jet nozzles 16, 16,... The dirt which is can be removed. And since the shielding board 13 is attached to the upper end of the washing | cleaning apparatus 5, the ultra-high pressure water sprayed hits this shielding board 13, and does not go up. Accordingly, a decrease in water pressure is suppressed along with the injection of ultra-high pressure water, and dirt attached to the inner surface of the deep well pipe and the screen is easily removed.
[0019]
And since the hole through which the ultra-high pressure water hose 2 is inserted is large to some extent at the center of the shielding plate 13, a gap 18 is left between the ultra-high pressure water hose 2. From this gap 18, mud, sand and the like washed away by jetting ultrahigh pressure water from the nozzle are pushed up and deposited on the shielding plate 13. It is not only the mud and sand that goes up through the gap 18 but also the jetted water, but the water flows to the other, leaving only the mud and sand having a high specific gravity on the shielding plate.
[0020]
Here, the frame structure which comprises the washing | cleaning apparatus 5 of this invention is not limited to the case shown in the said FIG. And the form and attachment method of the injection nozzle 16 are also free. As described above, the cleaning apparatus of the present invention includes the spray nozzle that rotates at the lower end portion of the frame, and the shielding plate is attached to the upper end of the frame, and the following effects can be obtained.
[0021]
【The invention's effect】
In the present invention, a cleaning device is attached to the tip of the ultra-high pressure water hose, and the cleaning device can be lowered into the deep well pipe together with the ultra-high pressure water hose. And since super high pressure water is jetted while flowing through the super high pressure water hose and rotating from the spray nozzle of the cleaning device, dirt such as mud and sand clogged in the inner surface of the deep well pipe and strainer hole can be easily obtained. Moreover, it can be removed in a short time.
[0022]
Therefore, the cost required for cleaning is less than that of the conventional method, and the hose is unwound from the drum loaded on the ultra-high pressure cleaning car, the cleaning device is lowered to the bottom of the deep well pipe, and the cleaning device is lifted from the bottom. However, it is only necessary to inject ultra-high pressure water, no special skill is required for the operator, and the work performance rate is high. On the other hand, since the upper end of the cleaning device is equipped with a shielding plate, the escape area of the ultra-high pressure water sprayed from the nozzle is blocked, so that the inner surface of the deep well pipe and the strainer hit with a high water pressure and stick firmly. Even dirt can be removed.
[0023]
And the hole through which the ultra-high pressure water hose is inserted is enlarged in the center of the shielding plate, and a gap is formed between the hose, but the water that is sprayed and hits the inner surface of the deep well pipe is from the gap As it goes up, dirt such as mud and sand accumulates on the shielding plate. Therefore, it can be viewed as a measure of whether or not the dirt of the deep well pipe has been removed, and this is also one factor for improving workability.
[Brief description of the drawings]
FIG. 1 shows a state in which a cleaning apparatus is lowered into a deep well pipe for cleaning.
FIG. 2 is a strainer provided in a part of a deep well pipe.
FIG. 3 shows an embodiment of the cleaning apparatus of the present invention.
FIG. 4 is a specific example of an injection nozzle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Deep well pipe 2 Super high pressure water hose 3 Super high pressure washing car 4 Pulley 5 Cleaning device 6 Hole 7 Pillow wire 8 Winding wire 9 Frame
10 Upper plate
11 Lower plate
12 U-shaped pier
13 Shield plate
14 Rotating body
15 coupling
16 Injection nozzle
17 Pat
18 Clearance

Claims (3)

In a method of connecting a cleaning device to the tip of an ultra-high pressure water hose wound around the drum of an ultra-high pressure cleaning car and lowering the cleaning device together with the hose to clean the deep well pipe, the cleaning device to be used is attached to the lower end of the frame. Comprises a rotating body and a plurality of jet nozzles attached to the rotating body, communicated with the ultra-high pressure water hose so that ultra-high pressure water is jetted from the jet nozzle, and the jet nozzle jets ultra-high pressure water At the top of the frame, a shield plate of a size that does not come into contact with the inner surface of the deep well pipe or does not generate a large gap is attached to the upper end of the frame. between the hose is provided on the center is obtained by forming the gap from the injection nozzle which is provided in the cleaning device jetting nozzle with the injection with injecting an ultra high pressure water is rotated, and The shield plate attached to the upper end of the water purification device blocks the escape area of the ultra-high pressure jet water, and passes through the gap between the shield plate center hole through which the ultra-high pressure water hose is inserted and the hose so that mud, sand, etc. A method for cleaning a deep well pipe, characterized in that dirt is deposited on the shielding plate. In a cleaning device that is connected to the tip of an ultra-high pressure water hose that is wound around a drum of an ultra-high pressure cleaning vehicle and that is lowered with the hose to clean a deep well pipe, a rotating body is provided at the lower end of the frame of the cleaning device, and Multiple injection nozzles are attached to the rotating body, communicating with the ultra-high pressure water hose so that ultra-high pressure water can be injected from the injection nozzle, and the injection nozzle injects ultra-high pressure water and can be rotated with the injection At the upper end of the frame, a shield plate of a size that does not contact the inner surface of the deep well pipe or that does not generate a large gap is attached, and a hole through which the ultra-high pressure water hose is inserted is provided at the center of the shield plate. A cleaning device for deep well pipes, characterized in that a gap is formed between them.   The cleaning apparatus for a deep well pipe according to claim 2, wherein a soft pad such as rubber or urethane is provided on an outer periphery of the shielding plate.

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