JP2855260B2 - Artificial air supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for producing artificial air by mixing oxygen and nitrogen and continuously supplying the same.
Location based on the wear and tear of the constituent solenoid valves.
Ku replacement regarding artificial air supply device <br/> that allow judicial notice of timing.

[0002]

2. Description of the Related Art Conventionally, the above artificial air supply device has been continuously operated.
In the case of operation , the maintenance of the solenoid valve , which is a drive device having a long life , is determined to be performed periodically, for example, once a year, and the parts are uniformly replaced at the time of the maintenance. Like that.

[0003]

For this reason, the conventional
In the case of using the artificial air supply device, the solenoid valve that is not actually operated yet, that is, the part that can be used for a considerable period of time will also be replaced. or Tsu island wastefully discard the seeds useful parts, also the exchange deadline to Toyogi
Ri, also becomes this <br/> and which may occur naturally also the supply of artificial air becomes impossible.

The present invention has been made in view of such a conventional problem, and in the case of claim 1, the apparatus main body of the air supply device has the following features .
In synchronization with the actuation of the solenoid valve , an electric signal is sent to an automatic counter, whereby the number of open, closed or open / closed solenoid valves is counted, and the counted value is a predetermined value. as may display whether the reached number, the electrostatic
By checking the life of each magnetic valve, it is possible to make effective use of solenoid valves, etc. , and unintentionally unable to supply artificial air.
That the prevention and so the occurrence thereof, an object.

[0005] Further, in claim 2, the above-mentioned claim
When one automatic counter reaches a predetermined count value,
It is trying to prevent this from happening due to human error by letting the observer confirm this with a light or sound alarm.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to an apparatus main body , wherein a pressure in a buffer tank thereof is higher than a predetermined high pressure value and lower than a predetermined low pressure value.
By detecting the step-down, enter the detection signal according to the detection result to the electric control system, the output signal transmitted from the electric control system on the basis of this input, electric in the aforementioned apparatus main body
By intermittently operating the magnetic valve, gas mixture of oxygen and nitrogen
Buffer from the vessel with artificial air supply piping
The number of times of use by the operation of the solenoid valve is displayed by inputting the output signal or the counting signal generated by the operation of the solenoid valve to the automatic counter, which can be supplied to the tank. Characteristic artificial air supply equipment
Trying to provide an installation .

Furthermore, in the case of claim 2 in addition to the above claim 1, count value by the automatic counter is the electrostatic
The content is that when the number of uses of the magnetic valve reaches the end of its use, an alarm connected to the automatic counter notifies the maintenance timing.

[0008]

[Action] device in engagement Ru artificial air supply device in claim 1
In the buffer tank of the main body to detect the inner pressure of the artificial air, and more at <br/> pressure switch, the detection result, when the situation leading to reduced or elevated than the predetermined pressure value has occurred ,
The detection signal is input to the electric control system by the operation of the pressure switch and the like.

The input signal causes the output signal from the electric control system to open or close the solenoid valve , thereby interrupting or starting the supply of artificial air or the like. A part of the output signal is also input to an automatic counter to count the number of times the solenoid valve is driven, or to operate the solenoid valve according to the output signal described above, and to output a counting signal based on the operation to the automatic counter. The number of times of use is counted as described above.

Therefore, the number of times the solenoid valve has been driven by the solenoid valve is counted and displayed on the automatic counter so far. By confirming this, it is possible to compare the known life of the solenoid valve with the known life. The replacement time can be clearly understood.

According to a second aspect of the present invention, an alarm is added to the configuration of the first aspect, so that when the automatic counter reaches the number of times of use, which is the life of the solenoid valve , the alarm is turned on. Alternatively, since the notification is made by a sound or the like, the completion of use of 3 to 5 million times, which is the number of life of the solenoid valve, can be clearly indicated to the monitor.

[0012]

When EXAMPLES The invention per Ri詳 to serial by the illustrated embodiment, the apparatus main body of the artificial air supply apparatus shown in FIG. 1 (A)
Reference numeral 1 denotes a gas mixer 1 which supplies source gases G1 and G2, which are oxygen and nitrogen , and mixes them in predetermined amounts.
and a, and an artificial air delivery pipe 1d coupled to the buffer tank 1 c by being derived from this contact through the solenoid valve 1 b,
The artificial air supply pipe 1 derived from the buffer tank 1c
e.

Further, the apparatus main body 1 includes a gas mixer 1.
Artificial air MG is a mixed gas from a can, a buffer tank
The pressure switch 1g detects that the internal pressure of the artificial air has reached a predetermined value, and a detection signal PS based on this is input to the electric control system 2 via the input line 1f. It is configured to be. 1h in the figure
Shows the outlets in the terminal of the artificial air supply pipe 1e, artificial air MG will be supplied a mixture gas from which the demand end (not shown) such as a hospital. In the drawings, a thick line indicates a piping system, and a thin line indicates an electric system.

The electric control system 2 having received the detection signal PS
, Together with the internal pressure of the buffer tank 1c be boosted above a predetermined pressure value, and based on the fact that the step-down to below the predetermined low pressure value, and transmits an output signal WS to the solenoid valve 1 b above, of the output signal WS one the department, sent to the automatic counter 3
To do. As a result, the solenoid valve 1b is opened or closed by the output signal WS, and the gas mixer 1b is opened.
buffer tank from the same as above by using artificial air delivery pipe 1d
Artificial air MG fed to 1c becomes the state of the supplied Rikyo supply cutoff. Therefore, for example, the buffer tank
Relates Artificial air MG in 1c, when the internal pressure becomes higher than a predetermined value is cut off artificial air MG which has been supplied from the gas mixer 1a into the buffer tank 1c,
Further, when the internal pressure falls below a predetermined value, the opening of the solenoid valve 1b enables control such that the supply of the artificial air MG is restarted. Note that 4 in FIG.
, As the theory after per FIG (B), shows an alarm device connected to the output side of the automatic counter 3.

In the case shown in FIG . 1B, the output signal WS from the electric control system 2 is used as described above.
Activate the solenoid valve 1b, and thereby the artificial gas
When the air MG is opened or closed, the counting signal CS generated by the operation is input to the automatic counter 3,
Thus, the number of times the solenoid valve 1b is used is counted.

Furthermore, as disclosed in Ibid Figure 1 (B), In the artificial air supply apparatus according to claim 2, the automatic counter 3 above reporting, by connecting the alarm 4 by light or sound In addition, when the count value of the automatic counter 3 reaches the number of times of use of the solenoid valve 1b, the alarm 4 can report the fact.

[0017]

Since the present application, according to the present invention are those that are configured as described above, when due to claim 1, to confirm the life of the solenoid valve by a display of the automatic counter, thereby, be exchanged for their Can be used for regular maintenance .
Therefore, it is possible to eliminate waste such as simply replacing the solenoid valve with a new one only in its use period, and discarding a solenoid valve that can still be used sufficiently, and at the time of replacement.
If the supply of artificial air to hospitals is interrupted due to
It is possible to prevent trouble .

Further, according to claim 2, the automatic counter comprises:
When the number of times of use of the service life has been counted, this is reported by the alarm device, so that it is possible to eliminate an unexpected situation due to a delay in replacement work due to human error of the supervisor.

[Brief description of the drawings]

FIG. 1 shows an artificial air supply device according to the present invention, and (A)
FIG. 3 is an overall configuration diagram including a piping system and an electric system showing an embodiment thereof, and FIG. 2B is an overall configuration diagram of the same embodiment according to another embodiment.

[Explanation of symbols]

1 device main body 1a gas mixer 1b solenoid valve 1c buffer tank 1d artificial air supply pipe 2 electric control system 3 automatic counter 4 alarm PS detection signal WS output signal CS counting signal MG artificial air

Claims (2)

(57) [Claims] 1. A device according to claim 1, wherein said buffer tank has a pressure higher than a predetermined high pressure value and a pressure lower than a predetermined low pressure value in said buffer tank .
By detecting the step-down, enter the detection signal according to the detection result to the electric control system, the output signal transmitted from the electric control system on the basis of this input, electric in the aforementioned apparatus main body
By intermittently operating the magnetic valve, gas mixture of oxygen and nitrogen
Buffer from the vessel with artificial air supply piping
The number of times of use by the operation of the solenoid valve is displayed by inputting the output signal or the counting signal generated by the operation of the solenoid valve to the automatic counter, which can be supplied to the tank. Characteristic artificial air supply equipment
Place . 2. A In the apparatus main body, the step-up and less than or equal to a predetermined low pressure value higher than a predetermined pressure value in the buffer tank <br/>
By detecting the step-down, enter the detection signal according to the detection result to the electric control system, the output signal transmitted from the electric control system on the basis of this input, electric in the aforementioned apparatus main body
By intermittently operating the magnetic valve, gas mixture of oxygen and nitrogen
Buffer from the vessel with artificial air supply piping
It can be supplied to the tank, and by inputting the output signal or the counting signal generated by the operation of the solenoid valve to the automatic counter, the number of times of use by the operation of the solenoid valve is counted. An artificial air supply device characterized in that when the count value reaches the number of uses of the solenoid valve , the alarm is connected to the automatic counter to notify the arrival of the maintenance timing.