JPH0384124A - Water tank device installed at high position - Google Patents

Abstract

PURPOSE:To take early countermeasure against a location on trouble by providing a timing device to a storage pump operated by the signal of a water level detector and stopping the storage pump by at least one signal of the timing devide or the water level detector. CONSTITUTION:An upper-limit water level detector 10 and a lower-limit water level detector 11 composed of a common electrode body 9, an upper-limit elec trode body 8 and a lower-limit electrode body 7 are constitution into a water tank 11 installed at a high position, which is disposed onto the roof of a housing, and the signals of the detectors 10 and 11 are input to a control panel 5 control ling a storage pump 3 through a signal conductor 13. A timing device 6 detecting the operation timing of the pump 3 is connected to the panel 5. When a water level exceeds an upper-limit water level by the trouble etc. of a pump operating relay and the detector 11 or when the pump 3 is worked for a fixed time or more by the trouble etc. of the pump 3, a control signal is output fro the device 6 tot he panel 5, and the pump 3 is stopped. Accordingly, an early countermea sure to the location of the trouble is enabled.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an elevated aquarium device that takes water level control into consideration.

[Conventional technology]

An elevated water tank system in which a water tank is installed on the roof of a building and supplies water from this tank to each floor of the building is, for example, developed in Utility Model Opening in 1988.
It is disclosed in Japanese Patent No. 2695.

In this type of elevated water tank device, one end is connected to a water pump, the other end of the introduction pipe for replenishing water to the tank is opened at the top of the tank, and the bottom of the tank is used to supply water to each floor of the building. Water pipes are installed for this purpose.

A water level detector for detecting the upper limit water level and lower limit water level of the water tank is provided between the above-mentioned introduction pipe and the opening position of the water pipe into the water tank, and the water pump is operated by the detection signal of this water level detector. Or it is supposed to stop.

This type of elevated aquarium device has the above-mentioned configuration, and the water in the aquarium is supplied to each floor from the water pipe, and when the water level in the aquarium falls and reaches a preset lower limit water level, A water pump is activated by the detection signal from the water level detector, and water is supplied from the introduction pipe to the aquarium.

When the water level in the tank rises and reaches a preset upper limit water level, the replenishment of water to the water tank ends when the water pump is stopped by a detection signal from the water level detector.

[Problem to be solved by the invention]

The above conventional technology has problems with the water level detection device, etc.

If the water pump does not stop and no consideration is given to the drop in the amount of makeup water for the water pump, there is a risk that too much water will be pumped into the elevated water tank, leading to disasters due to overflow and water outages due to a decline in the performance of the water pump. be.

An object of the present invention is to provide an elevated aquarium device that can avoid this type of problem as described above.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, an introduction pipe connected to a pump and supplying water into the tank is opened at the upper part of the tank, and an introduction pipe is opened at the bottom of the tank. is provided with a water distribution pipe for water supply, and a water level detector is attached to the water tank to detect when the water in the water tank reaches a preset water level, and a water level detector is installed on the water tank based on a detection signal from the water level detector. In the elevated aquarium device, which is provided with a lift pump driving means that operates or stops the lift pump, the time limit from when the lift pump operates to when the upper limit water level is detected by the water level detector is extended beyond a predetermined time. The pump is configured to include a timer for detecting this and a means for stopping the water pump based on the output signal of the timer.

[Effect]

In the present invention, the timer detects the time period in which the water pump is operating, and when the water pump operates for a period exceeding a preset time, the water pump is activated by an output signal from the timer. to stop.

By limiting the operation time of the lift pump in this way, it is possible to prevent excessive water replenishment due to failure of the water level detector, etc., and to detect a drop in the amount of water supplied to the lift pump at an early stage, thereby preventing a disaster. Prevention and prevention are carried out.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail using FIGS. 1 and 2.

Here, FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a circuit diagram showing the configuration of a main part of the embodiment of the present invention.

As shown in FIG. 1, in the embodiment of the present invention, a water tank 2 storing water is provided on the lowest floor of the building, and an elevated water tank 1 is provided on the roof of the building. 2 and the elevated water tank 1 are connected by an introduction pipe 4, and a water pump 3 is inserted into the introduction pipe 4. By the operation of this water pump 3.

Water in the water receiving tank 2 is pumped up and supplied into the elevated water tank l from the upper part of the elevated water tank 1 through an introduction pipe 4.

In addition, a water distribution pipe 12 for water supply is provided at the bottom of the elevated water tank 1, and a common electrode body 9 is installed extending from the top toward the bottom within the elevated water tank l. A short upper limit electrode body 8 and a lower limit electrode body 7, which is slightly shorter in length than the common electrode body 9, are attached from the top of the elevated water tank l toward the bottom in substantially parallel fashion.

The aforementioned common electrode body 9 and upper limit electrode body 8 are brought into conduction by the water 20 in the elevated water tank 1, thereby detecting that the water level of the water 20 in the elevated water tank l has reached the upper limit water level. It constitutes an upper limit water level detector 10. Similarly, the common electrode body 9 and the lower limit electrode body 7 are brought into a non-conducting state by the water 20 in the elevated aquarium l, thereby detecting that the water level of the water 20 in the elevated aquarium 1 has reached the lower limit water level. It constitutes a lower limit water level detector 11.

The output signals of these upper limit water level detector 10 and lower limit water level detector 11 are inputted to a control panel 5 that controls the operation and stop of the water pump 3 via a signal line 13, and this control panel 5 is connected to a control line 14. is connected to the water pump 3.

A timer device 6 that detects the time limit during which the water pump 3 is operating is connected to the control panel 5 through a signal line 18.

As shown in FIG. 2, the lower limit water level detector 11 and the lower limit water level detection relay 16 are connected in series between the power terminals P and N, and similarly, a contact 16b and a contact 15 are connected between the power terminals P and N.
b and the pump operation relay 17 are connected in series with each other.

Further, a contact 17a is connected in parallel to the contact 16b.

Further, an upper limit water level detector 10 and an upper limit water level detection relay 15 are connected in series between the power terminals P and N, and a connection 17a2, a contact 18a2 and a pump 3 are connected between the power terminals P and N. connected in series with each other. Further, a timer 6 is connected in parallel to the water pump 3.

Further, a contact 6a and a pump stop relay 18 are connected in series between the power terminals P and N. Also, contact 6
A contact 18a1 is connected in parallel to a, and an alarm device 50 that uses a buzzer to notify the stoppage of the water pump 3 is connected to the contact 1.
The circuit is configured to operate when 8a3 is turned on.

Next, its operation will be explained below.

In Figure 1, 1. The water 20 in the elevated water tank 1 is transferred to the water pipe 12
When water is supplied to each floor of the building via the water tank 1, the water level of the water 20 in the elevated water tank 1 gradually decreases.

When the water level of this water 20 falls below the tip of the lower limit electrode body 7,
The conduction state between the lower limit electrode body 7 and the common electrode body 9 turns, which had been set by water 20, is interrupted.

In FIG. 2, when the water level lower limit detector 11 detects that the lower limit electrode body 7 and the common electrode body 9 are in a non-conducting state and the water level of the water 20 in the highland aquarium 1 has reached the lower limit value, the water level lower limit Relay 16 is deenergized.

Also, at this time! There is no conduction between the electrode body 8 and the common electrode body 9, and the water level upper limit detector 10 has not detected that the water level of the water 20 in the elevated aquarium 1 has reached the upper limit, and the water level upper limit detection relay 15・It is also in a state of decline.

For this purpose, contacts 16b and 15b are both ON, and a closed circuit is formed by power terminal P, contact 16b, contact 15b, pump operating relay 17, and power terminal N, and pump relay 17 is energized. By contact point 17
al is turned on, and the water pump operation relay 17 is self-held.

In this way, when the water pump operation relay 17 is energized, the contact 17a2 is turned on, and the power terminal P and the contact 1
7a2, contact 18a,, a closed circuit is formed between the water pump 3 and the power terminal N, and the water pump 3 operates and the water tank 2
The water inside is supplied to the upper part of the elevated water tank through the introduction pipe 4.

In addition, at the same time as the water pump 3 operates, the water pump 3
A closed circuit is also formed in the timer 6 connected in parallel with the
Start counting the time limit.

By replenishing the water in the water tank 2 to the elevated water tank,
The water level of the water 20 in the elevated water tank l increases, and when this water level reaches the tip of the upper limit electrode body 8, conduction occurs between the upper limit electrode body 8 and the common electrode body 9, so that the water level upper limit detector 10
detects that the water level in the elevated water tank 1 has reached the upper limit,
The water level upper limit detection relay 15 is activated.

By energizing this water level upper limit detection relay 15.

Since contact 15b is turned OFF, water pump operation relay 1
7 is energized, the contact 17a2 is turned OFF'F, the operation of the water pump 3 is stopped, and the supply of water to the elevated water tank 1 is stopped. Further, the timer 6 connected in parallel with the water pump 3 is also deenergized, and the timer that was counting is released.

In this manner, the water level lower limit detector 11 indicates that the water level of the water 20 in the elevated water tank 1 has reached the lower limit value in the normal operating state.
When detected, the water pump 3 is activated and the water is pumped from the water receiving tank 2 to the inlet pipe 4 until the water level of the water 20 in the elevated water tank 1 reaches the upper limit.
Water is supplied to the elevated aquarium 1 via.

When the water pump 3 operates for more than a predetermined time period due to a malfunction of the upper limit water level detector 11 or the water pump operation relay 17, etc., exceeding the upper limit water level, or due to a malfunction of the water pump 3, etc., the amount of water supplied to the elevated water tank 1 decreases. When the water pump 3 operates for more than a predetermined time period, a control pulse signal is output to the control panel 5 from the timer 6 connected in parallel with the water pump 3.

This control pulse signal turns on the contact in Fig. 2 6a.
A closed circuit is formed by the power terminal P, the contact 6a, the pump stop relay 18, and the power terminal N, and when the pump stop relay 18 is energized, the contact 18a1
is turned on, and the water pump stop relay 18 is self-held.

18 as the pump stop relay 18 is energized.
When a is turned off, the timer 6 is deenergized, and at the same time, the operation of the water pump 3 is stopped and the supply of water to the elevated water tank 1 is stopped. When the lift pump stop relay 18 is energized, the contact 18a1 is turned on, the alarm device 50 is activated, and a buzzer (not shown) inside the alarm device 50 sounds to notify of an abnormality.

As described above, according to the present embodiment, by stopping the water pump 3 using the timer 6, overflows and water outage accidents due to defects in the upper limit water level detector 11 in the elevated water tank l or the water pump operation relay 17 can be prevented. Moreover, the sound of the buzzer of the alarm device 50 enables early countermeasures to be taken for defective parts.

Further, by installing the alarm device 50 in a remote location and communicating abnormal conditions to an elevated aquarium management company or the like using a communication line or the like, more rapid countermeasures can be taken.

[Effects of the Invention] According to the present invention, it is possible to prevent the pump from stopping due to a malfunction in the upper limit water level detector, pump operation relay, etc., resulting in an excessive amount of make-up water, which overflows from the elevated water tank and causes damage. In addition to being able to prevent water outage accidents, it is possible to detect shortages in the amount of water being supplied to the elevated water tank due to problems with water pumps, etc., making it possible to take early measures to address problems, thereby preventing water outage accidents.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a circuit diagram showing the configuration of essential parts of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Elevated water tank, 2...Water tank, 3...Lifting pump, 4...Introduction pipe, 5...Control panel, 6...Timer, 7...Lower limit electrode body , 8... upper limit electrode body, 9...
- Common electrode body, 10... Water level upper limit detector, 11... Water level lower limit detector. 18... Lifting pump stop relay, 50... Alarm device. Figure 1

Claims (1)

[Claims] (1) An introduction pipe that is connected to a water pump and supplies water to the tank is opened at the top of the tank, a water supply pipe is provided at the bottom of the tank, and the water in the tank is preset. An elevated water tank, wherein a water level detector is attached to the water tank to detect when the water level has reached a certain level, and a water pump driving means is provided for operating or stopping the water pump based on a detection signal from the water level detector. In the device,
The water pump is operated by a water level detector that activates the water pump, and the pump is configured to supply water that reaches a water level at the same position or a predetermined position higher than the operating position of the water level detector that stops the water pump. It has a timer configured to output a signal for activating the pump, and is further provided with a stopping means configured to stop the water pump in response to a signal from at least one of the timer and the detector. Elevated aquarium device.