JP2651560B2 - Filtration water collecting device with clog elimination function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtration / collection device having a function of filtering water from a river or the like and collecting the water, and having a function of eliminating clogging of a filtration section.

[0002]

2. Description of the Related Art When river water is used for melting snow, clogging of a snow melting nozzle is easily caused as it is, so that the following filtration and collecting apparatus has been conventionally used. In this apparatus, as shown in FIG. 11, a water conduit d is connected to an intake c provided in a side wall b of a water channel a for flowing river water, and an end e is opened to a sedimentation tank f. The water taken through the filter tannet g attached to the side wall portion b so as to cover c,
It had been introduced into the precipitation tank f. By this filter net g, coarse dust such as fallen leaves contained in river water is removed, and relatively large solids are settled in the settling tank f. Thereafter, the water thus settled and filtered is introduced into the screen filtration chamber k by the pump j, and flows from the upper end thereof to the inclined screen surface m to remove soil particles having a small particle diameter. Had been sent.

[0003]

However, in the case of using such a conventional filtration water collecting apparatus, since the filtration is performed in the precipitation tank h and the screen filtration chamber k in addition to the filtration by the filter net g, the apparatus is large-scale. Therefore, not only was a relatively large site required for the construction of the sedimentation tank and the screen filtration chamber, but also the construction cost was high and the whole apparatus was expensive.

In addition, in order to remove dust adhering to the filter net, it has been necessary to clean the filter net periodically (eg, at short intervals such as once a week). Also, regular cleaning was required for the screen surface, and especially for the sedimentation tank, a large-scale cleaning was required in which an operator had to enter the tank to discharge the sediment. As described above, in the conventional apparatus that goes through several stages of filtration, since careful cleaning of each filtration unit is periodically required, the management is cumbersome, the management cost is high, and the maintenance management is improved. It was strongly desired.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a filtration / collection apparatus which can solve such a problem by providing a function of eliminating clogging in a collection section.

[0006]

In order to solve the above problems, the present invention employs the following means. That is, according to one aspect of the present invention, the required length of the water channel is a water collecting channel having a perforated bottom formed with a large number of filter holes, and the perforated bottom is formed. As a partition, a water collecting cavity is provided below the water collecting channel, a water intake channel is connected to the water collecting cavity, and a nozzle port for jetting water toward the filter hole is provided in the water collecting cavity. Are provided, and a plurality of outlet pipes are provided.

In the above-mentioned filtration water collecting apparatus, an electrode rod and a submersible pump are arranged in a water storage tank communicating with an intake channel, and a communication pipe connected to a discharge pipe is connected to a water pipe connected to a discharge side of the submersible pump. The water supply pipe is provided with a first solenoid valve positioned at the front side of the connecting portion of the water supply pipe, and the communication pipe is provided with a second solenoid valve. The electrode rod signal generated when the water level in the tank falls below the set value,
It is preferable that the first solenoid valve is closed and the second solenoid valve is opened.

[0008] In addition to the filtration water collecting apparatus according to the present invention, the required length of the water channel is a water collecting channel having a perforated bottom surface having a large number of filter holes penetrating therethrough. A water collecting space is provided below the water collecting channel, and an intake channel is connected to the water collecting space, and the upstream open end of the water collecting space is connected to the water channel on the inflow side of the water collecting channel. In addition to the communication, the supply of water to the catchment channel is cut off and the flow of water to the catchment cavity is enabled, while the supply of water to the catchment cavity is cut off and the flow of water to the catchment channel. An opening / closing device that enables the operation is provided.

In the above-mentioned filtration water collecting apparatus, an electrode rod is arranged in a water storage tank communicating with the water intake passage, and the opening and closing device is controlled by a signal of the electrode rod generated when the water level of the water storage tank falls below a set level. It is preferable that the water supply to the catchment can be shut off for a certain time and the water can flow into the catchment space.

[0010]

According to the filtering and collecting apparatus having the above construction, the water (river water or the like) flowing through the water channel is filtered through the filter hole of the collecting channel and introduced into the water collecting space.
It is sent to a predetermined place via an intake channel.

[0011] When the filter hole is clogged, the solution is as follows. When the filtration water collecting device has an outlet pipe, water (filtered river water or the like) is supplied to the outlet pipe, and the water is jetted from a nozzle port of the outlet pipe toward a filter hole. Eliminate clogging of holes. The removed garbage flows away with the water flowing through the waterway.

[0012] When the filtration water collecting device has a switchgear,
When the switchgear is operated to shut off the supply of water to the water collecting channel and to flow the water into the water collecting cavity, the water flowing into the water collecting cavity blows up into the water collecting channel through the filter hole. , Which eliminates clogging of the filter hole,
The removed trash flows down the waterways.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment In FIGS. 1 to 4, a filtration water collecting apparatus 1 according to the present invention is configured such that a required length when a water channel 2 is viewed in a length direction is a water collecting channel 3 and a water collecting channel 3 is provided below the water collecting channel 3. A water cavity 5 is provided, a water intake passage 6 is connected to the water collection cavity 5, and an outlet pipe 7 is provided in the water collection cavity 5.

In the present embodiment, the water channel 2 is formed with a gutter, through which river water flows. The required length portion of the channel is dug deeper than the channel bottom, and the space of the dug portion is raised and lowered by a perforated bottom portion 11 whose upper surface 9 is flush with the channel bottom 10. The upper space is the water collecting channel 3, and the lower space is the water collecting space 5 having both ends 12 and 13 closed in the length direction of the water channel. In this embodiment, the bottom portion 11 of the perforated hole is a support piece that projects a punching metal plate 16 having a large number of 1 mm-diameter filter holes 15 (FIG. 5B) through a channel wall. 17, 17 are formed to support. The punching metal plate 1
As shown in FIG. 5, a relatively rough panning metal plate 19 is laid on the lower surface of the perforated bottom surface portion 11 made of
6 and 19 may be supported by the support pieces 17 and 17.

A water tank 20 is adjacent to the downstream end portion of the water collecting space 5, and the water intake passage 6 as a through hole formed in the side wall of the water collecting space is provided with the water tank 20. It is open to the public. In the water storage tank 20, an electrode rod 21 (FIGS. 3 and 4) for detecting a water level is provided.

A support 22 is fixedly provided on the bottom surface of the water collecting space 5 at both ends and an intermediate portion in the longitudinal direction. An outlet pipe 7 having a length substantially corresponding to the entire length in the length direction of the water collecting space is supported by the support base 22 and juxtaposed in the width direction of the water collecting space. It is fixed to. A large number of nozzle ports 26 are provided in the upper surface of the blow-out pipe 7 to discharge water toward the filter hole 15 in the longitudinal direction. Each of the blow-out pipes 7 is shown in FIGS.
As shown in FIG.
It is communicated to. The communication pipe 27 is arranged in the width direction of the water collecting space, the rear end 29 is closed, and a portion 30 on the near side penetrates the intake channel 6 and protrudes into the water storage tank 20.

As shown in FIG. 4, a submersible pump 31 is provided in the water storage tank 20, and a water supply pipe 32 connected to the discharge side of the submersible pump 31 extends to a predetermined location, for example, to a supply port of a snow melting nozzle. Be connected. The communication pipe 27 extends above the water storage tank and is connected to the water supply pipe 32 near the water storage tank. The water pipe 32 includes a water pipe connecting part 33.
A first electromagnetic valve 35 is interposed at a position slightly ahead of the communication pipe 27, and a second electromagnetic valve 36 is also interposed in the communication pipe 27 at a position near the connecting portion 33.

Normally, the second solenoid valve 36 is closed and the first solenoid valve 36 is closed.
When the submersible pump 31 is operated, the water in the water storage tank 20 flows through the water pipe 32 (the flow indicated by the symbol A in FIG. 4) and is guided to a predetermined location. The filter hole 15 (FIG. 5B) is filled with debris, and the collecting space 5
As the inflow of water into the reservoir decreases, the water level in the water storage tank drops. When the water level in the water storage tank falls below the setting and the electrode rod 21 generates an abnormal signal, the first solenoid valve 35 is closed and the second solenoid valve 3 is closed for a certain time set by the time switch.
6 is open. Therefore, during this time, the submersible pump 3
By the operation of No. 1, the water in the water storage tank 20 is indicated by a symbol B in FIG.
And flows into the communication pipe 27 through the water supply pipe 32 and is supplied to the blow-out pipes 7. The water supplied to the blow-out pipe 7 is, as shown by an arrow in FIG.
6 squirts toward the filter hole 15 to eliminate clogging of the filter hole. The removed garbage flows away with the water flowing through the waterway.

Second Embodiment FIG. 6 shows another embodiment of the filtration and collecting apparatus 1 according to the present invention. In the same manner as in the first embodiment, the filtration water collecting device 1 forms a water collecting channel 3 at a portion of a required length of a water channel 2 having a side groove, and a lower portion of the water collecting channel 3 is formed in the same manner as described above. In addition, the water collecting space 5 formed by digging down the bottom of the water channel is continuously provided through the perforated bottom surface 11 having the panning metal plate 16.

The downstream end 37 (FIG. 8) of the water collecting space 5 is closed, and the side wall 39 of the water collecting space 5 is connected to the water storage tank 20 at the downstream end side of the water collecting space. Intake channel 6 that communicates
Is opened. The upstream end 40 of the catchment space 5 is open. The waterway part adjacent to the upstream end of the catchment space is
The recess 41 is dug deeper than the bottom of the catchment cavity.
It has been.

The opposite wall portions 42, 42 of the recess 41
In the vicinity of the upstream end of the water collecting space 5, guide grooves 43, 43 extending in the vertical direction are provided to face each other. An opening / closing plate 46 constituting an opening / closing device 45 for controlling the supply of the channel water to the water collecting channel 3 and the water collecting space 5 is provided in the two guide grooves 43.
Of the open / close plate 46
Can be moved up and down by being guided by the guide grooves 43. The lower part of the opening / closing plate 46 is provided with an opening 49 which can communicate with the upstream end 40 of the water collecting cavity 5, and the upper part thereof is provided with the upstream end 40 of the water collecting cavity or the water collecting passage. Is formed as a closing portion 51 that can close the upstream end 50.

The opening / closing plate 46 is, as shown in FIGS.
When the lower end 52 is in contact with the upper surface 53 of the recess, the closing portion 51 closes the upstream end 40 of the catchment space 5.
When the opening / closing plate 46 is raised and the opening 49 communicates with the upstream end 40 of the catchment space 5 as shown in FIGS. 9 to 10, the closing portion 51 closes the catchment channel 3. The opening and closing plate 46 can be moved up and down using well-known means such as a hydraulic cylinder, a gear device, or a chain device (not shown).

Normally, as shown in FIG.
The lower end 52 is in a descending state in contact with the upper surface 53 of the recess, so that the upstream end 40 of the water collecting cavity 5 is closed and the upstream end 50 of the water collecting channel is released. Therefore, as shown by the arrow in FIG. 8, the river water flows into the catchment space 5 through the filter hole 15 and flows into the water storage tank 20 from the intake channel 6.

When the filter hole 15 is filled with dust and the amount of water flowing into the water collecting space 5 is reduced, the water level in the water storage tank is lowered. When the water level of the water storage tank falls below the setting and the electrode rod installed in the same manner as described above generates an abnormal signal, a drive device such as a hydraulic cylinder is operated in response thereto, and as shown in FIGS. Then, the opening / closing plate 46 is raised so that the inflow of the river water into the catchment channel 3 is prevented and the river water flows into the catchment space 5, and the opening / closing plate 46 is raised by the time switch for a predetermined time. Take position. Therefore, the river water that has flowed into the catchment vacant space blows up from the filter hole and flows into the water collecting channel 3 while eliminating the clogging of the filter hole 15, as shown by the arrow in FIG. . After the clogging is eliminated, the opening / closing plate 46 is lowered to the state shown in FIG.

In the filtration / collection device using the opening / closing device, the opening / closing device is not limited to the configuration using the ascending / descending opening / closing plate. Various opening / closing devices, such as those that can be opened and closed by independent opening / closing plates, can be employed.

[0026]

EFFECTS OF THE INVENTION Since the filtration water collecting apparatus according to the present invention is configured as described above, in a normal state, water (eg, river water) flowing through a water channel is filtered through a filter hole of the water collecting channel. And introduced into the catchment vacant space. Therefore, even if the water level is low, there is an advantage that the water can be reliably filtered and taken from the entire surface of the water collecting channel.

If the filter hole is clogged after a certain period of time, the action of the jet accompanying the supply of water (usually water in the water channel) to the blow-out pipe or the action of the water flow accompanying the opening / closing operation of the switchgear. The clogging can be easily eliminated. In particular, when the water tank is communicated with the water intake channel and the electrode rod is installed in the water tank, the first solenoid valve and the first solenoid valve are controlled by the signal of the electrode rod generated when the water level of the water tank falls below the setting. By operating the second solenoid valve as required,
Alternatively, the clogging can be automatically eliminated by operating the switching device as required by the signal.

Further, according to the present invention, since the function of eliminating clogging is added to the water collecting portion, the equipment is very simple and compact as compared with the above-mentioned conventional apparatus, and the equipment cost can be reduced. In addition, there are very significant economic advantages, such as shortening the construction period.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view illustrating an embodiment of a filtration water collecting apparatus.

FIG. 2 is a longitudinal sectional view thereof.

FIG. 3 is a plan view of the perforated hole with a bottom portion removed.

FIG. 4 is an explanatory diagram illustrating a water flow control mechanism in the filtration water collecting device.

FIG. 5 is a cross-sectional view illustrating a configuration of a bottom portion of a hole.

FIG. 6 is a partially cutaway perspective view illustrating another embodiment of the filtration / collection device.

FIG. 7 is a cross-sectional view of the water channel showing a state in which the upstream end of the water collection channel is opened by the opening / closing plate and the upstream end of the water collection space is closed.

FIG. 8 is a longitudinal sectional view of a water channel showing the state.

FIG. 9 is a cross-sectional view of the water channel showing a state where the upstream end of the water collection channel is closed by an opening / closing plate and the upstream end of the water collection space is opened.

FIG. 10 is a longitudinal sectional view of the water channel showing the state.

FIG. 11 is a cross-sectional view illustrating a conventional filtration water collecting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filtration water collecting device 2 Waterway 3 Water collecting channel 5 Water collecting space 6 Intake channel 7 Blow-off pipe 10 Water channel bottom 11 Perforated bottom surface 15 Filter hole 20 Water storage tank 21 Electrode rod

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display E03F 5/14 B01D 35/02 R

Claims (4)

(57) [Claims] 1. A required length of a water channel is a water collecting channel having a perforated bottom surface formed with a large number of filter holes,
A water collecting space is provided below the water collecting channel with the bottom surface of the perforated as a partition, and an intake channel is connected to the water collecting space. A filter water collecting device having a clogging elimination function, comprising a blow-out pipe provided with a large number of nozzle ports for blowing water. 2. The filtration water collecting apparatus according to claim 1,
An electrode rod and a submersible pump are arranged in a water tank communicating with the intake channel, and a water pipe connected to the discharge side of the submersible pump is connected to a communication pipe connected to the discharge pipe. When the first solenoid valve is interposed and located at the tip side of the connecting portion of the water pipe, and the second solenoid valve is interposed in the communication pipe, when the water level of the water storage tank falls below the setting. Wherein the first solenoid valve is closed and the second solenoid valve is opened for a certain period of time in response to a signal from the electrode rod generated in the filtration water collecting apparatus. 3. A required length of the water channel is a water collecting channel having a perforated bottom surface formed with a large number of filter holes,
A water collecting cavity is provided below the water collecting channel, a water intake channel is connected to the water collecting cavity, and an upstream open end of the water collecting cavity is connected to the water collecting channel by using the bottom surface of the perforated hole as a partition. On the inflow side, the water is connected to the water channel, and the supply of water to the water collecting channel is cut off and the water can flow into the water collecting cavity. A filtration water collecting device provided with a clogging elimination function, which is provided with an opening / closing device that allows water to flow into the water collecting device. 4. The filtration and collection device according to claim 3,
An electrode rod is placed in the water tank connected to the water intake channel, and the signal from the electrode rod generated when the water level of the water tank falls below the setting causes the switch to supply water to the water collection channel for a certain period of time. A filtration / collection device which shuts off and allows water to flow into a collection space.