JP6509787B2 - Cleaning system and method - Google Patents

Description

  The present invention relates to a horizontal boring cleaning system and method.

  If the water collection pipe provided in the horizontal boring of the water collection well is not cleaned regularly, obstructions such as fine grain soil, biofilm, scale, etc. will accumulate in the water collection pipe and the drainage function will deteriorate. Therefore, conventionally, the blockage accumulated on the inner wall of the water collection pipe is removed by high-pressure cleaning.

  Moreover, patent document 1, 2 is known as a technique relevant to micro nano bubble washing | cleaning.

JP, 2014-141802, A JP, 2011-230108, A

  However, in high pressure cleaning, since the blockage accumulated on the inner wall of the water collection pipe is removed by the impact force of the high pressure water jetted, there is a possibility that the water collection pipe made of, for example, vinyl chloride may be damaged. Also, the blockage does not accumulate only on the inner wall of the water collection tube. Also in the water collection space for collecting groundwater in the side of the water collection pipe, and in the water collection space for collecting groundwater in the space between the inner wall of the horizontal boring and the outer wall of the water collection pipe, The obstructions accumulate. However, in high-pressure cleaning, high-pressure water does not reach the water collecting hole portion and the water collecting space, so it is difficult to remove the water collecting structure.

  Then, the method of removing the obstruction | occlusion thing accumulated on the inner wall of a water collection pipe | tube by applying micro nano bubble wash water is considered. According to this method, since high pressure water is not used, the risk of damaging the water collection pipe is reduced. However, even if this method is applied, it is difficult to remove the obstruction accumulated in the water collection hole and the water collection space. The reason is that the horizontal boring is a cylindrical hollow with the ground excavated in the horizontal direction from the horizontal, and the water collection pipe is provided in the horizontal boring, so the micro-nano bubble cleaning water supplied in the water collection pipe is collected This is because the water is not drained in the pipe but is immediately discharged to the water collecting well along the inner wall of the water collecting pipe. Then, in the water collection pipe provided in the horizontal boring, even cleaning of the inner wall of the water collection pipe becomes difficult. Furthermore, in the water collection pipe, for example, circular holes with a diameter of about 5 [mm] are staggered as water collection holes at intervals of 60 [mm], so the water collection holes are easily blocked and the water collection holes are If it is blocked, it is difficult for the micro-nano bubble wash water to fully permeate to the water collection space.

  An object according to one aspect of the present invention is to provide a cleaning system and a cleaning method capable of suppressing the removal and the growth of obstruction accumulated in the vicinity of a water collection pipe.

The washing system which is one form concerning the present invention is provided with a washing water supply source, a water supply pipe, an armored pipe, and a connection jig.
The wash water source produces wash water. The water supply pipe supplies wash water to the water collection pipe installed in horizontal boring. The external pipe passes the water supply pipe into the pipe. The connecting jig has an outer pipe connecting portion connected to one end of the outer pipe and a water collecting pipe connecting portion connected to the outlet side end portion of the water collecting pipe installed in the horizontal boring.

  The external pipe is installed at a predetermined height above the drain end of the water collection pipe, and supplies wash water from the wash water supply source to the water collection pipe via the water supply pipe, and the inner wall of the horizontal boring and the water collection pipe The wash water penetrates into the water collection space provided between the outer wall of the water pipe and the ground side of the horizontal boring.

  Also, when the washing water reaches the predetermined height of the outer tube, the washing water is supplied until the predetermined time for which it can be considered that the washing water has permeated to the ground side of the horizontal boring, and the predetermined time is reached After the passage of time, the drainage port provided in the connecting jig is opened.

  Moreover, in the cleaning method which is one form according to the present invention, one end of an exterior pipe for passing a water supply pipe for supplying cleaning water into the pipe, and an outlet side end of a water collection pipe installed in horizontal boring Connect via a connecting jig. Subsequently, the outer pipe is raised to a predetermined height above the drain end of the water collection pipe, and the wash water is supplied to the water collection pipe through the water supply pipe from the wash water supply source generating the wash water. Do. Then, wash water is supplied to the water collection space provided between the inner wall of the horizontal boring and the outer wall of the water collection pipe, and the water collection space provided between the inner wall of the horizontal boring and the outer wall of the water collection pipe, Permeate the wash water to the ground side of the

  Also, from the time when the washing water reached the predetermined height of the outer tube, the washing water was supplied until the predetermined time when it can be considered that the washing water penetrated from the inner wall of the horizontal boring, and the predetermined time passed After that, the drainage port provided in the connecting jig is opened.

  It is possible to suppress the removal and growth of the obstruction accumulated around the water collection pipe.

It is a block diagram which shows one Example of a washing | cleaning system. It is sectional drawing which shows the water collection pipe and the structure of the periphery of it. It is sectional drawing which shows one Example of a connection jig. FIG. 5 is a flow diagram illustrating one embodiment of the operation of the cleaning system.

Hereinafter, embodiments will be described in detail based on the drawings.
The washing system is a system for washing the blockage accumulated around the horizontal boring provided on the side of the water collection well using washing water. Here, the washing water is, for example, a liquid excellent in infiltration, peeling, and dissolving action such as micro bubble water, micro nano bubble water, nano bubble water and the like. FIG. 1 is a block diagram showing an embodiment of a cleaning system. The cleaning system shown in FIG. 1 has a cleaning water supply source 1, a water supply pipe 2, an exterior pipe 3, and a connection jig 4. Moreover, the horizontal boring 5 excavated from the wall surface is provided on the wall surface of the water collection well shown in FIG. 1, and the water collecting pipe 6 and the sealing material 7 are provided inside the horizontal boring 5.

The structures of the horizontal boring 5 and the water collection pipe 6 will be described using FIGS. 1 and 2.
FIG. 2 is a cross-sectional view showing the structure of the water collecting pipe 6 and the periphery thereof, and is a cross-sectional view of a section indicated by a broken line A1-A2 and a broken line B1-B2 shown in FIG.

The horizontal boring 5 is a cylindrical hollow in which the ground is dug from the horizontal to the upper side.
The water collection pipe 6 includes a water inlet side end 6a for collecting groundwater, a plurality of water collection holes 6c opened on the side of the water collection pipe 6 for collecting groundwater, and a water collection pipe 6 And an outlet end 6b for discharging the drained groundwater to a water collection well. The water collection pipe 6 is a tubular pipe, and, for example, a vinyl chloride pipe or a steel fiber pipe can be considered. However, the water collection pipe 6 is not limited to these. Further, as shown in FIG. 2, the water collection pipe 6 is a horizontal boring so as to maintain a water collection space for collecting groundwater between the inner wall 5 a of the horizontal boring 5 and the outer wall 6 d of the water collection pipe 6. Installed inside of 5.

  The seal member 7 is provided between the inner wall 5 a of the horizontal boring 5 and the outer wall 6 d of the water collection tube 6 in order to maintain the water collection space. The sealing material 7 may be, for example, a ring-shaped rubber or an expansive material.

  In addition, in Fig. 1 and Fig. 2, the blockage (shaded area) is accumulated in the inner wall 6e of the water collecting pipe 6, the water collecting hole 6c, the water collecting space, the inner wall 5a of the horizontal boring 5 and the ground on the outside thereof. Show that. Thus, the accumulation of the occluded matter around the water collection pipe 6 causes the drainage function to be degraded.

The configuration of the cleaning system will be described.
The wash water supply source 1 shown in FIG. 1 supplies wash water to the inside of the water collection pipe 6 via the water supply pipe 2. When the wash water supplied from the wash water supply source 1 is a micro-nano bubble, the diameter of the micro-nano bubble is preferably, for example, about 10 nm to 100 μm. In addition, the washing water supply source 1 may change the diameter of the micro-nano bubbles in accordance with the type of the blockage. That is, by supplying washing water suitable for washing the blockage, the blockage around the water collection pipe 6 can be efficiently washed. Also, the gas used in generating the micro-nano bubbles may be changed to a gas suitable for the blockage. For example, when carbon dioxide gas is used, an anaerobic environment can be formed around the water collection tube 6 after cleaning, so that the growth of obstructions can be delayed for a long time.

  The water supply pipe 2 drains the wash water supplied from the wash water supply source 1 into a water collection pipe 6 installed in the horizontal boring 5. Further, one end of the water supply pipe 2 is connected to the washing water supply source 1, and the other end (the tip) is provided with the irradiation unit 8. Further, the irradiation unit 8 irradiates the cleaning water. The water supply pipe 2 is a pipe having a flexible cylindrical surface of a polymer, and for example, a polyvinylidene pipe or a vinyl chloride pipe can be considered. However, it is not limited to these.

  The exterior pipe 3 is a cylindrical pipe through which the water supply pipe 2 passes. In addition, the exterior pipe 3 is raised and installed at a predetermined height above the outlet side of the water collection pipe when carrying out cleaning of the blocked object, and the water level of the cleaning water is kept at a predetermined height. Use for As described above, by setting the water level of the washing water to a predetermined height, the washing water can be retained in the water collection pipe 6, and the washing water can be permeated from the water collection space and the horizontal boring 5 to the ground outside. In addition, when there is a blockage, it is difficult to penetrate at first, but by continuing to supply the washing water, the washing water will permeate the ground.

  The predetermined height is at least the height of the tip of the horizontal boring 5 from above the end of the water collection pipe 6 on the outlet side. For example, in the case where the exterior pipe 3 is raised above the tip height of the horizontal boring 5 and installed, when the washing water is supplied, the washing water reaches a water level higher than the height of the broken line C1-C2 shown in FIG. In addition, when the exterior pipe 3 is raised and installed at the middle height of the horizontal boring 5, when the washing water is supplied, the water level of the washing water reaches the middle height of the horizontal boring 5 or more. Further, the tip end of the exterior pipe 3 may be disposed below a predetermined height after being raised to a predetermined height in consideration of penetration into the ground.

  Further, the external pipe 3 is a flexible cylindrical pipe, and for example, a resin hose, a vinyl chloride pipe or the like can be considered. However, it is not limited to these. In addition, in the installation of the exterior pipe 3, for example, it is conceivable to attach a rope to a fence at the upper part of the water collection well or to the upper part of the water collection well and to fix it to the rope. Also, it may be fixed to the side of the water collection well.

  The connection jig 4 is a jig for connecting the exterior pipe 3 and the water collection pipe 6. The connection jig 4 will be described using FIGS. 1 and 3. FIG. 3 is a cross-sectional view showing one embodiment of the connection jig 4. The connecting jig 4 is connected to an outer pipe connecting portion 4 a connected to one end of the outer pipe 3, a main body portion 4 b, and an outlet side end 6 b of the water collecting pipe 6 installed in the horizontal boring 5. And a water pipe connection portion 4c. Further, the connection jig 4 is provided with a drain port 4d1 which can be opened and closed. Although FIG. 3 shows a configuration in which the drainage port 4d1 can be opened and closed by using the plug 4d2, a solenoid valve or the like may be used.

  As shown in FIG. 3, a band 4e or the like is used to connect the external pipe connection portion 4a and the end (one end of the external pipe) of the external pipe 3 on the connection jig 4 side. In addition, as shown in FIG. 3, a band 4f or the like is used to connect the end 4b1 of the main body 4b and the end 4c1 of the water collecting pipe connector 4c. In addition, as shown in FIG. 3, a band 4 g or the like is used to connect the end 4 c 2 of the water collection pipe connecting part 4 c and the drainage port side end 6 b of the water collection pipe 6. In addition, the water collection pipe | tube connection part 4c is a flexible cylindrical pipe, for example, a resin hose, a vinyl chloride pipe, etc. can be considered. However, it is not limited to these.

The washing procedure will be described.
FIG. 4 is a flow diagram illustrating one embodiment of the operation of the cleaning system.
In step S1, the water supply pipe 2 is passed through the outer pipe 3, the connection jig 4 and the water collection pipe 6 in this order. The operator passes the irradiation unit 8 provided at the front end of the water supply pipe 2 from the end on the washing water supply source 1 side of the external pipe 3 to the end on the connection jig 4 side, It passes from the external pipe connection 4a of the tool 4 to the end 4c2, and then passes from the outlet end 6b of the water collection pipe 6 to the inside of the water collection pipe 6.

  In step S 2, the wash water supply source 1 generates wash water and supplies the water to the water collection pipe 6 via the water supply pipe 2. The operator starts the flush water supply source 1 and starts the flush water supply from the flush water supply source 1 to the water collection pipe 6 via the water supply pipe 2.

In step S3, the irradiation unit 8 is inserted around the water inlet side end 6a of the water collection pipe 6, and the state shown in FIG. 1 is obtained.
In step S4, the connecting jig 4 is connected to the outer pipe 3 and the water collecting pipe 6. The worker uses the band 4e to connect the external pipe connection part 4a and the end (one end of the external pipe) of the external pipe 3 on the connection jig 4 side, and uses the band 4f to connect the end of the main body 4b. 4b1 and the end 4c1 of the water collecting pipe connector 4c are connected, and the band 4g is used to connect the end 4c2 of the water collecting pipe connector 4c and the water outlet side end 6b of the water collecting pipe 6.

  In step S5, the exterior pipe 3 is raised to a predetermined height and installed. The operator raises the external pipe 3 to the tip height of the water collection pipe 6 or the horizontal boring 5 and fixes it to the upper part or side of the water collection well.

  In step S6, washing water is supplied to discharge a certain amount of obstructions in the water collection pipe 6. That is, since the washing water is already irradiated from the irradiation part 8 in step S2, the blockage of the inner wall 6e of the water collection pipe 6 can be removed to some extent. At this time, since the drain 4d1 of the connection jig 4 is open, the blockage removed from the drain 4d1 is drained.

  The operation of connecting the connecting jig 4 to the exterior pipe 3 and the water collection pipe 6 in step S4, and the operation of raising the exterior pipe 3 to a predetermined height in step S5 may be performed after step S6. .

In step S7, when it is determined that the blockage at step S6 is discharged, the drainage port 4d1 of the connection jig 4 is blocked by the plug 4d2.
In addition, a worker may visually determine, for example, or may use a measuring device such as a water quality meter or a turbidity meter to determine whether a certain degree of obstruction has been discharged.

  In step S8, it is determined whether or not a predetermined time has elapsed since the flush water in the exterior pipe 3 has reached a predetermined height, and if the predetermined time has elapsed (Yes), the process proceeds to step S10. If the predetermined time has not elapsed (No), the process proceeds to step S9, and washing water is supplied in step S9. That is, between the inner wall 5a of the horizontal boring 5 and the outer wall 6d of the water collection tube 6 by supplying the wash water into the water collection tube 6 via the water supply pipe 2 from the washing water supply source 1 that generates the washing water. Washing water can be made to permeate the water collection space provided and the ground outside the inner wall 5 a of the horizontal boring 5.

  The judgment as to whether the washing water has penetrated can be regarded as that the washing water has permeated to the ground outside the inner wall 5a of the horizontal boring 5 since the washing water has reached a predetermined position of the external pipe 3 for a predetermined time It is judged whether or not the washing water is supplied until the elapse of. The predetermined time in which the washing water can be regarded as having penetrated is a time in which the washing water can be regarded as having permeated to the washing water permeation range 9 shown by a solid line shown in FIG. That is, since it can be determined that the washing water has penetrated to the washing water permeation range 9 shown by the solid line after the predetermined time has elapsed, it can be determined that the obstruction has been removed by the peeling and dissolving action of the washing water.

  In step S10, when the predetermined time has passed, the worker opens the drain 4d1 to drain the flush water and the blockage. Subsequently, the worker connects a band 4e connecting the external pipe connection portion 4a and the end (one end of the external pipe) of the external pipe 3 on the connection jig 4 side, and an end portion 4b1 of the main body 4b. The band 4f connecting the end 4c1 of the water collecting pipe connector 4c, and the band 4g connecting the end 4c2 of the water collecting pipe connector 4c and the outlet end 6b of the water collecting pipe 6 are removed. Subsequently, the worker pulls out the water supply pipe 2 from the water collection pipe 6, the connection jig 4, and the exterior pipe 3. Thereafter, the worker shuts off the washing water supply source 1.

According to the cleaning apparatus and the cleaning method, the cleaning water can be retained around the water collection pipe 6, so that the blockage accumulated in the periphery of the water collection pipe 6 can be removed.
Moreover, since the removal and growth of the obstruction thing of the collection pipe 6 periphery can be suppressed, the lifetime of horizontal boring 5 can be lengthened.

  In addition, by supplying micro-nano bubble water generated using carbon dioxide gas to the wash water, an anaerobic environment can be formed around the water collection pipe 6 after the wash, and the blockage is caused by the long-term retention of the wash water. Growth can be suppressed.

In addition, although washing | cleaning with respect to one horizontal boring 5 was demonstrated in embodiment mentioned above, you may implement washing | cleaning simultaneously using washing water with respect to several horizontal boring.
Further, the present invention is not limited to the above embodiment, and various improvements and changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Wash water supply source 2 Water supply pipe 3 Exterior pipe 4 Connection jig 4a Body part connection 4b Body part 4b1 End 4c Water collection pipe connection 4c1 End 4c2 End 4d1 Drain 4d2 Plug 4e, 4f, 4g Band 5 horizontal Boring 5a Inner wall 6 Water collecting pipe 6a Water inlet side end 6b Water outlet side end 6c Water collecting hole 6d Outer wall 6e Inner wall 7 Seal material 8 Irradiated part 9 Wash water penetration range

Claims (4)

A supply pipe for supplying wash water to a wash water supply source and a collection pipe installed in horizontal boring;
An external pipe for passing the water supply pipe into the pipe;
And a connecting jig having an outer pipe connecting portion connected to one end of the outer pipe and a water collecting pipe connecting portion connected to the outlet side end of the water collecting pipe installed in the horizontal boring.
The outer pipe is installed at a predetermined height above the drain side end of the water collection pipe, and the wash water is supplied from a wash water supply source into the water collection pipe via the water supply pipe, A water collection space provided between an inner wall of the horizontal boring and an outer wall of the water collection tube, and infiltrating the washing water to the ground side of the horizontal boring;
Cleaning system characterized by The cleaning system according to claim 1, wherein
After the cleaning water reaches the predetermined height of the outer tube, the cleaning water is supplied until a predetermined time when it can be considered that the cleaning water has infiltrated the ground side of the horizontal boring.
After the predetermined time has elapsed, the drainage port provided in the connection jig is opened,
Cleaning system characterized by Connecting one end of an outer pipe through which a water supply pipe for supplying washing water is passed through the pipe and an outlet end of a water collection pipe installed in the horizontal boring via a connection jig;
Setting up the outer tube at a predetermined height above the outlet side of the water collection tube;
In the water collection space provided between the inner wall of the horizontal boring and the outer wall of the water collection tube, the water supply is supplied to the water collection tube via the water supply pipe from a water supply source that generates the washing water Supplying the washing water, and infiltrating the washing water to a water collection space provided between an inner wall of the horizontal boring and an outer wall of the water collection pipe, and a ground side of the horizontal boring;
A washing method characterized by A cleaning system according to claim 3, wherein
The washing water is supplied from the time when the washing water reaches the predetermined height of the outer tube, until the predetermined time when the washing water can be considered to have penetrated to the ground side of the horizontal boring has passed.
After the predetermined time has elapsed, the drainage port provided in the connection jig is opened,
A washing method characterized by

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