JP3943370B2 - Sewerage maintenance system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a maintenance system for a sewerage facility, and more particularly to a maintenance system capable of removing sediment and the like accumulated in a sewer pipe of a sewerage facility.
[0002]
[Prior art]
In sewerage facilities, sediments mixed in the sewage in the sewer pipe will not only flow down, but will not only block but also prevent maintenance such as the generation of odors and toxic gases. And sediments are removed to ensure the flow capacity of the pipes. Conventionally, the method for removing the sediment accumulated in the sewage pipe has been a manual operation using a work vehicle or a machine tool. It has also been proposed to drive a fluid ejection nozzle provided in a sewage pipe (see JP 59-134244 A).
[0003]
[Problems to be solved by the invention]
Cleaning the sewage pipes is often performed by workers installing machinery and equipment on the road, which may impede traffic depending on the location, and may cause dangerous work such as the generation of odors and noise, and the use of high-pressure water. In addition, it is necessary to eliminate deposits in consideration of traffic obstacles and worker safety. And the system which drives a fluid ejection nozzle had the problem of how to ensure the fluid to be used.
[0004]
The present invention solves the conventional problem, and can be eliminated by automatically or manually opening and closing the gate by operation from a distance without relying on human power to eliminate the deposited material in the sewer pipe, It is another object of the present invention to provide a maintenance system for a sewerage facility that does not cause dangers such as generation of bad odors and toxic gases, use of high-pressure water, etc., and does not require securing a fluid to be used.
[0005]
[Means for Solving the Problems]
The present invention provides a gate device that is installed in a sewer pipe and a discharge chamber of a sewerage facility, secures intercepted water that stops the water flow in the sewer pipe and removes deposited substances, and opens and secures the weir crest by the gate device. means for flowing the the shield catchment, while maintaining the target level of the sewer pipe by said gate device, said gate device to open and close in conjunction with the signal of water level gauge, so as not to flow Yue sewage from sewer pipe, or And a means for controlling the combined water in the discharge chamber so as not to cross the overflow weir .
[0008]
The present invention also provides a gate device that is installed in a sewer pipe and a discharge chamber of a sewerage facility, secures intercepted water that stops the water flow in the sewer pipe and eliminates accumulated substances, and opens the weir stopper by the gate device. It is determined whether there is a possibility of rain by means of flowing intercepted water and meteorological information, and when rain is present, intercepted water is secured by the gate device and secured when the target water level is reached. A sewerage facility maintenance system comprising a means for performing an exclusion operation for discharging the amount of water discharged.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described.
Hereinafter, an embodiment of a maintenance system for a sewerage facility according to the present invention will be described with reference to FIGS. FIG. 1 is a configuration explanatory diagram of a maintenance system for a sewerage facility according to an embodiment. FIG. 2 is an explanatory diagram of an example of the execution flow of depositing substance removal in the maintenance system for the sewerage facility according to the embodiment. FIG. 3 is an explanatory diagram of an example of the execution flow for removing accumulated substances from branch lines and trunk lines in the maintenance system for the sewerage facility according to the embodiment.
[0010]
Examples will be described. Maintenance system of sewage facilities of the present embodiment, as shown in FIG. 1, the gate 11a, 11b, 11e, 1 1 f, the motor 12a, 12b, 12e, 12f, water level gauge 13a, 13b, 13e, 13f, overflow It consists of the weirs 14e, 14f and the device 2 for the exclusion control room. The exclusion control room device 2 has an exclusion operation instruction unit and an exclusion operation management unit. While maintaining the target water level in the sewage pipe by the gate device, the sewage is passed from the sewage pipe in conjunction with the signal of the water level gauge. Control so that it does not flow.
[0011]
The sewerage facility that is the target of the maintenance system of the present embodiment is a pipe facility that is applied to the combined sewerage system that collects and processes the combined water 5c to 5f composed of sewage and rainwater in the same pipe, and includes the trunk line 31 and the branch line. 32e, 32f, pump stations 41c, 41d, discharge chambers (water tanks) 42e, 42f, water supply pumps 43c, 43d, and the like. The trunk line 31 connects the pump stations 41c and 41d, and the branch lines 32e and 32f connect the discharge chambers (water tanks) 42e and 42f to the trunk line 31, respectively. The pump stations 41c and 41d are provided with water pumps 43c and 43d, respectively, and the combined water 5d is sent to a treatment plant (not shown) by the water pump 43d at the pump station 41d. The discharge chambers (water-dividing tanks) 42e and 42f divide the water that flows the combined water 5e and 5f into the treatment plant and the water that is discharged into the river.
[0012]
In the trunk line 31, gates 11a and 11b, motors 12a and 12b, and water level gauges 13a and 13b are respectively arranged immediately before the junction with the branch lines 32e and 32f. Gates 11e and 11f, motors 12e and 12f, water level gauges 13e and 13f, and overflow weirs 14e and 14f are installed in the discharge chambers (water-dividing tanks) 42e and 42f, respectively.
[0013]
The operation | movement which excludes the depositing substance in the branch line 32e in the maintenance system of the sewerage facility of an Example is demonstrated. When depositing substances are excluded, the gate 12e is shielded by interlocking with the motor 12e by a signal from the device 2 for exclusion control room, and the combined water is secured. When the target water level is reached, the motor 12e is received by a signal from the water level gauge 13e. In conjunction with this, the gate 11e is opened to discharge the reserved amount of water, and the accumulated substances in the branch line 32e are eliminated. Note that the combined water 5e does not drain over the overflow dam 14e as natural overflow water.
[0014]
Similarly, when removing the deposited substances in the main line 31 and the branch line 32f, the gates 11a, 11b, 11f, the motors 12a, 12b, 12f, and the water level gauges 13a, 13b, 13f are operated. The reason why there are two gates 11a and 11b in the trunk line 31 is to increase the rejection efficiency by dividing the trunk line 31 by the gates 11a and 11b, and it is preferable to increase the number of gates as the line length increases. .
[0015]
The apparatus 2 for exclusion control rooms in the maintenance system of a sewerage facility of an Example is demonstrated. The exclusion operation instruction unit of the exclusion control room device 2 receives weather information, automatic or manual instructions, and water level information from the water level gauges 13a to 13f, and the exclusion operation management unit controls the opening and closing of the gate. Specifically, it receives weather information or an automatic or manual command, receives information that the target water level has been reached from the water level gauges 13a to 13f, operates the motors 12a to 12f, and opens the gates 11a to 11f.
[0016]
An example of an execution flow of depositing substance removal in the maintenance system of the sewerage facility of the embodiment will be described with reference to FIG.
S101 Start.
S102 It is determined from the weather information whether there is a possibility that it will rain several days later. If there is rain, the process proceeds to step S121, and if there is no rain, the process proceeds to step S111.
S111: It is determined whether the elapsed date from the previous exclusion execution is 10 days or more. If 10 days have elapsed, the process proceeds to step S121, and if it is less than 10 days, the process returns to step 102.
S121 Exclusion operation is performed. The exclusion operation is performed in the order of the branch line and the trunk line, and the process returns to step S102.
In this way, it is possible to carry out the sediment removal in the maintenance system of the sewerage facility of the embodiment.
[0017]
The exclusion operation execution procedure in the maintenance system of the sewerage facility of the embodiment will be specifically described with reference to FIG.
S201 Excludes the branch lines 32e and 32f. It carries out in order of the branch line 32e and the branch line 32f.
S202 The gate 11e is closed.
S203 The target water level is reached.
S204: The gate 11e is opened.
S205 The gate 11f is closed.
S206 The target water level is reached.
S207 The gate 11f is opened.
S211 Excludes the main line 31.
S212 The gate 11a is closed.
S213 The target water level is reached.
S214: The gate 11a is opened.
S215: The gate 11b is closed.
S216 The target water level is reached.
S217: The gate 11b is opened.
In this way, it is possible to execute the operation of removing the deposited substances on the branch lines 32e and 32f and the main line 31.
[0018]
In addition, although the said Example demonstrated in the application example to a combined sewer, it is applicable also to a shunt type sewage pipe.
[0019]
【The invention's effect】
According to the present invention, water quality can be improved because the gate can be removed periodically by opening or closing the gate automatically or manually by operation from a distance without relying on human power to eliminate sediment in the sewer pipe. Can do. Moreover, there is no danger of generation of bad odors or toxic gases, use of high-pressure water, etc., and a sewerage facility maintenance system that does not require securing of the fluid to be used can be obtained.
[Brief description of the drawings]
FIG. 1 is a configuration explanatory diagram of a maintenance system for a sewer facility in an embodiment.
FIG. 2 is an explanatory diagram of an example of a deposition substance removal execution flow in the maintenance system of the sewerage facility according to the embodiment.
FIG. 3 is an explanatory diagram of an example of an execution flow for removing accumulated substances on branch lines and main lines in the maintenance system for a sewerage facility in the embodiment.
[Explanation of symbols]
11a to 11f Gates 12a to 12f Motors 13a to 13f Water level gauges 14e and 14f Overflow weir 2 Exclusion control room device 31 Trunk line 32e and 32f Branch lines 41c and 41d Pump stations 42c and 42d Discharge chamber (water tank)
43c, 43d Water supply pumps 5c to 5f Combined water

Claims (2)

A gate device that is installed in the sewer pipe and discharge chamber of the sewerage facility and secures intercepted water that keeps the water flow in the sewer pipe to weir and removes the deposited material, and intercepted water that is secured by opening the weir seam by the gate device means for flowing the while maintaining a target level of the sewage pipe by said gate device, said gate device to open and close in conjunction with the signal of water level gauge, so as not to flow Yue sewage from sewer pipe, or of the discharge chamber And a means for controlling the combined water so that it does not cross the overflow weir . Installed in sewer pipe and overflow chamber of sewerage systems, and a gate device for securing the shield current water to eliminate the deposited material dammed water flow sewer pipe, shielding catchment secured by opening the dam and fit by the gate device It is determined whether there is a possibility of rain according to the means of flowing water and meteorological information, and when there is rain, the gate device secures intercepted water and eliminates the amount of water secured when the target water level is reached A sewerage facility maintenance system comprising: means for operating.

Images