JPH08135004A - Monitor for vacuum sewerage system - Google Patents

Abstract

PURPOSE: To facilitate the maintenance, by providing a detecting sensor of the opening/closing state and a water level sensor in a vacuum valve unit installed in a house inlet to judge abnormal conditions in accordance with the detected figure and indicate the result with a lamp when it is abnormal. CONSTITUTION: When a certain volume of sewage is kept in a sewage pit 3 in a building site, a vacuum valve 4 is opened and sewage is sucked to a sewage-collecting tank in a vacuum pump station and then transferred to a sewerage plant by a pump. In this system, a detecting sensor 16 of the opening/ closing state of the valve and a water level sensor 17 are provided in the vacuum valve unit 11 and further, a controller distinguishing an abnormal condition on the basis of the detected figure is provided. In case of an abnormal condition, it is informed by flickerring of a lamp on an abnormal indicator or other means to repair the abnormal part and make it normal before sewage overflows the pit 3. In this way, abnormal parts are detected in the early stages for effective maintenance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for a vacuum sewer system which is one of the methods for collecting sewage from many buildings.

[0002]

2. Description of the Related Art As a conventional monitoring device for a vacuum sewer system of this type, as shown in FIGS.
Those described in Japanese Patent No. 43527, etc. are known.

In such a vacuum type sewer system monitoring device, the sewage discharged from the building 1 on the ground flows into the sewage basin 3 through the natural downflow pipe 2 in the ground.

When a certain amount of waste water is accumulated in the waste water container 3, the vacuum valve 4 disposed above the waste water container 3 is opened, and the waste water in the waste water container 3 is sucked from the suction pipe 5 and the vacuum valve is opened. 4 through the vacuum sewage pipe 6, the vacuum sewage pipe 6
Is collected in a water collecting tank at a vacuum pump station (not shown). Sewage collected in the water collection tank is transported to a sewage treatment plant by a pressure pump or the like.

The vacuum valve 4 is provided with a detector 7 as shown in FIG.

The detector 7 includes a magnet 8 and a magnetic detector 9.
Of the relative position of the integrating box 10 installed in the building 1 by detecting the shift of the relative position by the change of the magnetic field and the open / closed state by an electric signal.
Send to.

In the integrating box 10, the open state duration time and the closed state duration time are measured, and if the open state duration time or the closed state duration time exceeds the set time, it is judged to be abnormal. , Is configured to give an alarm.

[0008]

However, in such a conventional monitoring device for a vacuum sewer system, when the vacuum valve 4 of one sewage box 3 fails and the open state continues, the surrounding sewage boxes are closed. The vacuum pressure of the vacuum dirty water pipe 6 routed to 3 ...

For this reason, not only the wastewater basin 3 in which the vacuum valve 4 has failed, but also the surrounding sewage basin 3 ..., the vacuum valves 4 ... Do not open, and the sewage from the wastewater basin 3 ... to the vacuum wastewater pipe 6 ... There was a risk that sewage would overflow without being able to inhale.

Further, in such a vacuum sewer system monitoring device, when any of the vacuum valves 4 causes an abnormality when an alarm is issued by a plurality of sewage boxes and a maintenance person rushes in, when the above-mentioned state occurs. There was also the problem of not knowing.

[0011] Therefore, an object of the present invention is to provide a monitoring device for a vacuum sewer system in which there is no risk of sewage overflowing and which vacuum valve is the cause of the abnormality.

[0012]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a sewage box for storing sewage discharged from one or a plurality of buildings, and a sewage box for storing the sewage box A plurality of vacuum valve units having a vacuum valve for opening and closing the suction port of the vacuum type waste water pipe for sucking the collected waste water are provided, and each vacuum valve unit is connected to a vacuum pump station via the vacuum type waste water pipe. In a monitoring device for a vacuum sewer system that conveys sewage to the vacuum pumping station by connecting, an open / closed state detection sensor for detecting the open / closed state of the vacuum valve, and a water level for detecting the water level of the sewage in the sewage box. A sensor, a judgment means for judging whether each is abnormal based on the open / closed state and the water level detected by the open / closed state detection sensor and the water level sensor, and when it is determined that there is an abnormality by the determination means, It is characterized in the monitoring device of a vacuum sewer system having a fault display means for people of the abnormal display.

[0013]

[Operation] According to the claim 1 having such a configuration,
When the open / closed state detection sensor detects the open / closed state of the vacuum valve and the water level sensor detects the water level of the sewage in the sewage basin, the determination means determines whether there is an abnormality based on the open / closed state and the water level. Is judged.

When it is determined that the abnormality is present by the determination means, each abnormality display means displays an abnormality.

Therefore, when an abnormality in the opened / closed state of the valve is detected, the abnormality in the opened / closed state is displayed. Further, when an abnormality in the water level is detected, the abnormality in the water level is displayed and the normal state can be restored by maintenance before the sewage overflows.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention. In addition, the same or equivalent portions as those in the conventional example will be described with the same reference numerals.

First, the structure will be described. In the monitoring apparatus for the vacuum sewer system of this embodiment, waste water discharged from a plurality of buildings 1 ... Is collected in the vacuum valve unit 11 through the natural flow pipes 2. Is configured.

The vacuum valve unit 11 has a sewage box 3 for storing sewage, and a vacuum valve 4 for opening and closing a suction port 6a of a vacuum type sewage pipe 6 for sucking the sewage stored in the sewage box 3.
And, by projecting one end to the surface of the earth, the ventilation pipe 11a which makes the atmospheric pressure in the sewage box 3 approximately the same as the atmospheric pressure, and the vacuum valve 4 when the water level in the sewage box 3 rises There is provided a water level detection pipe 11b which is opened and is closed when the water level is lowered.

A plurality of the vacuum valve units 11 are embedded in the ground, and each vacuum valve unit 1 is provided.
1 ... is a vacuum pump station 1 via the vacuum type waste water pipe 6 ...
Connected to 2. Then, sewage is pumped through the inside of the plurality of vacuum type sewage pipes 6 ...
2 is configured to be transported.

At this vacuum pumping station 12, the water collecting tank 1
3 is kept in a negative pressure state by a vacuum pump 14, and the sewage collected in the water collection tank 13 is sent to a sewage treatment plant or the like by a pressure feed pump 15.

Each of the vacuum valve units 11 has an open / closed state detection sensor 16 for detecting the open / closed state of the vacuum valve 4.
And a water level sensor 17 for detecting the water level of the sewage in the sewage box 3.

Of these, the open / closed state detection sensor 16 detects a relative positional deviation between the magnet and the magnetic detector by a change in the magnetic field, and the open / closed state is detected by an electrical signal, similarly to the conventional detector 7. It is configured to deliver.

Further, the water level sensor 17 is configured to convert the vertical movement of the float floating on the dirty water surface into an electric signal.

Each of the open / closed state detection sensor 16 and the water level sensor 17 are connected to a control device 18 as a judgment means. The control device 18 is configured to determine whether or not there is an abnormality based on the open / closed state and the water level detected by the open / closed state detection sensor 16 and the water level sensor 17.

A power source 21 is connected to the control device 18, and a valve abnormality display device 19 and a water level abnormality display device are provided as abnormality display means which are respectively arranged on the exposed front surface of the ventilation pipes 11a. 20 are connected to each other.

The valve abnormality display device 19 and the water level abnormality display device 20 turn on a lamp or the like when the control device 18 determines that the valve opening / closing state or the water level is abnormal, and the vacuum valve unit 11 is activated. It is configured to display an abnormality every time.

Next, the operation of this embodiment will be described.

[Normal state] The sewage discharged from the building 1 on the ground flows into the sewage box 3 through the natural flow pipe 2 in the ground.

When a certain amount of wastewater is accumulated in the wastewater container 3, the water level detecting pipe 11b detects the water level and the vacuum valve 4 arranged above the wastewater container 3 is opened.

The sewage in the sewage box 3 is pushed to the atmospheric pressure, sucked from the suction port 6a of the vacuum sewage pipe 6, flows through the vacuum sewage pipe 6 through the vacuum valve 4, and each of these vacuums. The waste water pipes 6 are connected to the water collecting tank 13 of the vacuum pumping station 12.

The sewage collected in the water collection tank 13 is conveyed to a sewage treatment plant by a pressure pump 15 or the like.

When the water level in the waste water container 3 drops, the water level detecting pipe 11b detects it and closes the vacuum valve 4.
In a normal state, this opening / closing operation is repeated, and the sheet is conveyed as a pulsating flow.

At this time, the open / closed state detection sensor 16 detects the open / closed state of the vacuum valve 4, and when the vacuum valve 4 is open, an open signal is sent to the controller 18. When the opening signal is input, the control device 18 starts measuring the opening time until the next closing signal is input. In the normal state, the opening time is within the preset time. Therefore, in this case, the control device 18 determines that the vacuum valve 4 is in the normal state and does not output the opening / closing abnormality signal.

In the normal state, the water level sensor 17 does not reach the set water level, so that the water level detection signal is not sent to the control device 18. Since the water level detection signal is not input to the control device 18, it is determined to be in a normal state, and the water level abnormality signal is not sent from the control device 18 either.

[Abnormal State 1] For example, when the vacuum valve 12 cannot be opened for some reason or is opened only slightly, the waste water in the waste water container 3 is transferred to the vacuum pump station 12. The sewage water level rises because it is not carried.

When the water level sensor 17 detects that the water level of the sewage in the sewage basin 3 has reached the set water level, the water level sensor 17 sends a water level detection signal to the control device 18. The control device 18 determines that the water level is in an abnormal state by inputting the water level detection signal.

In this way, when the control device 18 determines that the water level is abnormal, the control device 18 sends a water level abnormality signal to the water level abnormality display device 20, and the water level abnormality display device 20 causes the water level abnormality display device 20 to operate. The lamp is turned on and an abnormality is displayed for each vacuum valve unit 11.

Therefore, it is possible to restore the normal state by maintenance before the sewage overflows.

Further, since the water level abnormality display device 20 is individually provided on the exposed surface of the ventilation pipe 11a of the respective vacuum valve units 11 ...
However, it is easy to understand whether the cause of the abnormality has occurred and maintenance is easy.

[Abnormal State 2] For example, when the vacuum valve 12 is left open and cannot be closed for some reason, a large amount of sewage flows into the sewage box 3 compared to sewage carried to the vacuum pumping station 12. The sewage water level in the sewage box 3 rises.

When the water level sensor 17 detects that the water level of the sewage in the sewage basin 3 has reached the set water level, the water level sensor 17 sends a water level detection signal to the control device 18. The control device 18 judges that the water level is abnormal by the input of the water level detection signal, and the control device 18
Sends a water level abnormality signal to the water level abnormality display device 20, and the lamp is turned on by the water level abnormality display device 20,
An abnormality is displayed individually for each vacuum valve unit 11.

The open / close state detection sensor 16 detects the open state of the vacuum valve 4 and sends an open signal to the control device 18. When the opening time exceeds a preset time, the control device 18 determines that the vacuum valve 4 is in an abnormal state, and the control device 18 sends an opening / closing abnormal signal to the valve abnormality display device 19. .

Therefore, the lamp is turned on by the valve abnormality display device 19, and an abnormality is displayed for each vacuum valve unit 11.

Therefore, when the valve abnormality display device 19 and the water level abnormality display device 20 are turned on at the same time, the vacuum valve 4 of the vacuum valve unit 11 which is turned on at the same time remains open and cannot be closed for some reason. It is understood individually from the ground. Therefore, if the maintenance staff starts repairing from the vacuum valve unit 11 that is turned on at the same time, and after repairing this vacuum valve unit 11, further repairing the other vacuum valve unit 11 that is abnormally displayed causes the vacuum By repairing the valve unit 11, the cause can be removed first, and the vacuum sewer system can be restored efficiently.

[Abnormal State 3] For example, the vacuum wastewater pipe 6
When the vacuum pressure is lowered due to the breakage of the pipe line of FIG. 3 and the waste water is not satisfactorily conveyed, the waste water box 3 of the vacuum valve units 11, 11 centering on the broken portion 6a of the vacuum waste water pipe 6 in FIG. , 3 raises the sewage water level, and turns on the lamp of the water level abnormality display device 20, 20.

Therefore, the maintenance staff knows on the ground that the vacuum dirty water pipe 6 connected to both the vacuum valve units 11 and 11 in which the lamps of the water level abnormality display devices 20 and 20 are lit is damaged. You can Therefore, since the damaged portion 6a can be almost specified before the ground is dug back,
The repair work can be performed efficiently.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and the present invention can be made even if there is a design change or the like within the scope not departing from the gist of the present invention. include.

For example, in the above-mentioned embodiment, the open / closed state detection sensor 16 is constructed so as to detect the shift of the relative position of the magnet and the magnetic detector by the change of the magnetic field and send out the open / closed state by an electric signal. However, not limited to this, for example,
Any sensor such as a contact switch sensor or an optical sensor that detects the open / closed state of the vacuum valve 4 may be provided at any place and used as the open / closed state detection sensor.

Further, in the above embodiment, the water level sensor 17
Is configured to convert the vertical movement of the float floating on the sewage surface into an electrical signal, but not limited to this, for example, the distance from the disposed position to the water surface depending on the optical means. Optical measurement sensor, ultrasonic sensor, or a pair of electrodes that are separated from each other is installed at a predetermined position, and the rise of sewage causes sewage to come into contact with sewage, thereby Any water level sensor may be used as long as it can measure the water level, such as one that is supplied with a current to measure the water level.

In the above embodiment, the valve abnormality display device 19 and the water level abnormality display device 20 are provided as abnormality display means.
Although it is configured to turn on the lamp when a valve abnormality signal and a water level abnormality signal are input, the invention is not limited to this, and for example, blinking the lamp or ringing a buzzer, etc.
It goes without saying that no matter how abnormal the display is, as long as it can be distinguished from the normal state.

Further, in the above embodiment, the valve abnormality display devices 19 ... And the water level abnormality display device 20 ... Are individually provided on the exposed surface of the ventilation pipe 11a of each vacuum valve unit 11. Not limited to this, for example, a panel showing the arrangement of the entire system is provided, and each valve abnormality display device 19 ... And water level abnormality display device 20 ... Are arranged on this panel, and the abnormality location can be seen and specified at one location. It may be configured like this.

[0053]

As described above, according to the first aspect of the present invention, the open / closed state detection sensor detects the open / closed state of the vacuum valve, and the water level sensor detects the inside / outside of the waste water container. When the water level of the dirty water is detected, the judging means judges whether or not there is an abnormality based on the open / closed state and the water level.

When the judging means judges that the abnormality has occurred, each abnormality displaying means displays an abnormality.

Therefore, when an abnormality in the opened / closed state of the valve is detected, an abnormality in the opened / closed state is displayed. Further, when an abnormality in the water level is detected, the abnormality in the water level is displayed and the normal state can be restored by maintenance before the sewage overflows.

Therefore, it is easy to know which vacuum valve unit is the cause of the abnormality, and maintenance is easy.
It has a practically useful effect.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a monitoring device of a vacuum sewer system according to an embodiment of the present invention and illustrating a system configuration.

FIG. 2 is a sectional view of a vacuum valve unit, showing a monitoring device of the vacuum sewer system of the same embodiment.

FIG. 3 is a schematic view showing a monitoring device of the vacuum sewer system of the same embodiment and explaining the arrangement configuration of the entire system.

FIG. 4 is a schematic diagram illustrating a monitoring device of a vacuum type sewer system of a conventional example, which illustrates a layout configuration of the system.

FIG. 5 is a cross-sectional view of a vacuum valve unit, showing a conventional monitoring device for a vacuum sewer system.

[Explanation of symbols]

1 building 11 vacuum valve unit 12 vacuum pumping station 16 open / closed state detection sensor 17 water level sensor 18 control device (judgment means) 19 valve abnormality display device (one of abnormality display means) 20 water level abnormality display device (one of abnormality display means) )

Claims (1)

[Claims] 1. A vacuum valve having a sewage box for storing sewage discharged from one or a plurality of buildings, and a vacuum valve for opening and closing a suction port of a vacuum type sewage pipe for collecting sewage stored in the sewage box. A plurality of units are provided, and each vacuum valve unit is connected to a vacuum pumping station via the vacuum-type wastewater pipe, whereby a monitoring device of a vacuum sewer system that conveys wastewater to the vacuum pumping station, An open / closed state detection sensor that detects the open / closed state of the vacuum valve, a water level sensor that detects the water level of the sewage in the sewage basin, and an open / closed state and a water level detected by the open / closed state detection sensor and the water level sensor. A vacuum sewer system characterized by having a judging means for judging whether or not there is any abnormality, and an abnormality displaying means for displaying each abnormality when the judging means judges that there is an abnormality. Of the monitoring device.