JPH0723196B2 - Refueling device - Google Patents

Description

Description: [Industrial field of use] The present invention relates to a fueling device installed in a fueling station such as a gas station.

[Prior Art] As is well known, in an oil supply device of a gas supply station that handles volatile oil such as gasoline, a pump device is provided with a device for separating gas mixed as bubbles in the oil. The device for separating the gas mixed in the oil is usually composed of a gas-liquid separation device and a gas-liquid separation chamber. Then, the gas-liquid separation device separates the gas-rich oil and the gas-free oil, and sends only the gas-rich oil to the gas-liquid separation chamber. In the gas-liquid separation chamber, oil containing a large amount of gas is separated into gas and oil, the oil is returned to the pump again, and the gas is guided to a non-hazardous place and released from the air vent into the atmosphere.

[Problems to be Solved by the Invention] By the way, for example, in a suspension type oil supply device, a plurality of pump devices are installed in a pump chamber provided in one corner of a building, and an air vent is provided in each gas-liquid separation chamber of each pump device. If each of them is provided and opened at a high place outside the pump chamber, the amount of air vent pipe used becomes large and expensive, and if opened in the pump chamber, it is dangerous when oil is spouted (even with vapor). Further, when oil flows out due to a failure of a float valve in the gas-liquid separation chamber, if the oil cannot be detected promptly and failure countermeasures are delayed, not only loss of oil but also danger is caused.

Therefore, one of the objects of the present invention is that the air vent pipe is used in large amount and becomes expensive, as in the case of providing an air vent in each gas-liquid separation chamber of each pump device. The other is to provide a refueling device capable of promptly detecting a failure of the gas-liquid separation chamber.

[Means for Solving the Problems] Therefore, according to the present invention, pump devices that feed oil to a plurality of hose processing devices provided in a canopy are collectively installed in a pump chamber, and each pump device has a gas-liquid separation chamber. Is provided, each air vent pipe of the gas-liquid separation chamber is connected to the collecting chamber, the air vent rising from the collecting chamber is opened to a high place outside the pump chamber, and an oil sensor is provided at the bottom of the collecting chamber. There is provided a refueling device provided with an alarm that operates with an oil detection signal.

[Operation] The gas-liquid separation chamber provided in each pump device separates the oil containing the gas from the gas-liquid separation device into gas and oil, returns the oil to the pump again, and gas is the air vent of each gas-liquid separation chamber. It is collected in a collecting chamber through a pipe and then discharged from the air vent into the atmosphere outside the pump chamber. Then, when the float or the like of the gas-liquid separation chamber of any of the pump devices breaks down and oil flows out to the collecting chamber through the air vent pipe, the oil that has flowed away is collected at the bottom of the collecting chamber. Then, the oil sensor provided at the bottom detects the accumulated oil and activates the alarm to notify the staff.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a plurality of (four in the illustrated example) hose processing devices A of a suspended refueling device are suspended in a canopy 2 of a building 1 of a gas station. The oil supply device 10 of these oil supply devices is installed in the pump room 3 provided in one corner of the building 1, and these oil supply device 10 and the hose processing device A are connected by oil supply pipes 18, respectively. .

The oil feeding device 10 includes a pump device 13 driven by a motor 12.
A suction pipe 14 and a discharge pipe 15 connected to an underground tank (not shown) are connected to the pump device 13. The discharge pipe 15 is connected to a flow meter 17 having a flow pulse generator 16, and the flow meter 17 is connected to an oil supply pipe 18. The motor 12, the pump device 13, the flow pulse generator 16 and the flow meter 17 are housed in the housing 11.

The pump device 13 is provided with a known gas-liquid separation chamber (not shown), and each of the gas-liquid separation chambers is an air vent pipe.
It is connected to a collecting chamber 4 installed at one corner of the pump chamber 3 by 19a to 19d (hereinafter abbreviated as reference numeral 19). An air vent 5 is erected on the upper part of the collecting chamber 4, and an oil sensor 6a for detecting oil is provided on the bottom part thereof.
An alarm 7 provided on the front side of the building is connected to the oil sensor 6a.

On the other hand, an oil sump 8 is provided on the floor of the pump chamber 3, and an oil sensor 6b provided in the oil sump 8 is connected to the alarm device 7.

Next, the operation will be described.

The gas-liquid separation chamber provided in each pump device 13 separates the oil containing the gas from the gas-liquid separation device into gas and oil, returns the oil to the pump again, and the gas returns to the air vent pipes 19 of the gas-liquid separation chamber. After being collected, it is collected in the collecting chamber 4 and then discharged into the atmosphere outside the pump chamber 3 by the air vent 5.

When the float or the like in the gas-liquid separation chamber of any of the pump devices 13 fails and oil flows out to the collecting chamber 4 through the air vent pipe 19, the oil that has flowed out is collected at the bottom of the collecting chamber 4.
Then, the oil sensor 6a provided at the bottom detects the accumulated oil and operates the alarm 7 to notify the staff.

Therefore, the clerk can know that the gas-liquid separation chamber of one of the pump devices 13 is out of order, and can search for the gas-liquid separation chamber and immediately repair it. As a result, oil loss and danger can be prevented. Further, when the oil is leaked due to the poor seal of the pump device 13, the oil that flows on the floor surface and accumulates in the oil sump 8 is detected by the oil sensor 6b, and similarly immediately repaired to prevent oil loss and danger. be able to.

[Effects of the Invention] The present invention has the following excellent effects.

(1) Since the air vent pipe of the gas-liquid separation chamber of each pump device is connected to the collecting chamber and the air vent rising from the collecting chamber is opened to a high place outside the pump chamber, the gas-liquid separation chamber of each pump device is formed. Compared to the case where an air vent opening at a high place outside the pump room is provided for each, the number of air vent pipes used is small and the cost can be reduced.

(2) Since an oil sensor is provided at the bottom of the collecting chamber and an alarm that operates according to the oil detection signal of the oil sensor is provided, if oil such as the float in the gas-liquid separation chamber breaks down and oil leaks into the collecting chamber, Can be notified to the staff, the faulty gas-liquid separation chamber can be searched for and immediately repaired to prevent oil loss and danger.

[Brief description of drawings]

FIG. 1 is a perspective view showing a gas station equipped with a fuel supply apparatus embodying the present invention, and FIG. 2 is a side view showing the inside of a pump chamber. A: Hose processing device, 2 ... Canopy, 3 ... Pump room, 4 ... Assembly room, 5 ... Air vent, 6a ... Oil sensor, 7 ... Alarm device, 13 ... Pump device, 19 ... Air vent pipe

Claims (1)

[Claims] 1. A pump device for feeding oil to a plurality of hose processing devices provided in a canopy is collectively installed in a pump chamber, each pump device is provided with a gas-liquid separation chamber, and each air vent pipe of the gas-liquid separation chamber is provided. Was connected to the collecting chamber, the air vent rising from the collecting chamber was opened to a high place outside the pump chamber, an oil sensor was provided at the bottom of the collecting chamber, and an alarm that was activated by the oil detection signal of the oil sensor was provided. Refueling device characterized by.