KR100690202B1 - Gas charging device - Google Patents

Abstract

The present invention is to simplify the gas filling control mechanism to provide a safe and low-cost gas filling device.

To this end, according to the present invention, a cylinder storing unit 2 and a control mechanism storing unit 3 are formed in the housings 4 and 12, and the plurality of gas cylinders 17 are accommodated in the cylinder storing unit 2, and each gas cylinder (17) is connected to the main pipe (19) through an installation pipe (18) with a cylinder switching valve (21) interposed therebetween, and the main pipe (19) is provided with a flow meter (26) and a shutoff valve (27) along the way. A charging hose 5 is connected to the front end thereof, and a control device 42 for inputting a flow rate signal of the flowmeter 26 is provided in the control mechanism storage unit 3, and an operation panel 13 provided in the control mechanism storage unit 3. ) Is provided with an indicator 43 for displaying a display signal received from the control device 42 and an operation portion of the cylinder switching valve 21 and the shutoff valve 27.

Gas filling device, cylinder storage, control device storage

Description

Gas charging device

1 is a perspective view of a gas filling apparatus of the present invention.

2 is a device configuration diagram of a gas filling device.

3 is a front view of an operation panel of the gas filling device.

4 is a cross-sectional view of the slit portion of the housing.

5 is a partial cross-sectional view of the filling coupler hook.

6 is a schematic view of a gas-mounted device mounted on a truck.

※ Explanation of code for main part of drawing

1: Gas filling device 2: Bomb storage

3: control mechanism storage part 4, 12: housing

5: Filling hose 6a, 6b: Ground wire

7: filling coupler 8: coupler hanger

9: slit 10: caster

11 discharge tube 13 operation panel

14: signal line 15: notifier

16 socket 17 gas cylinder

18: auxiliary building 19: supervision

20: Bombe main valve 21: Bombe switching valve

22,30,34: Pressure gauge Main valve 23,31,35: Pressure gauge

24, 46: non-return valve 25: pressure regulating valve

26 flowmeter 27 shutoff valve

28: flow control valve 29: filling valve

32,36: Safety valve Main valve 33,37: Safety valve

38: decompression tube 39: frame arrester (firework)

40: depressurization valve 41: depressurization hose

42: control unit 43: indicator

44: supplementary main valve 45: filter

47: supplementary adapter 48: purge valve

49: gas sensor 50: opening (opening point)

51,52: Channel 53: Coupler Cover

54: locking mechanism 55: packing

56: truck 57: loading box

58: cab 59: battery

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling apparatus for filling hydrogen gas, natural gas, and the like (for example, high pressure gas), which have been put into practical use as fuel for boarding of automobiles.

From exhaustion and pollution of petroleum, hydrogen gas, natural gas, etc. have been put into practical use as fuel for automobiles. These gases are stored in a gas supply tank, pressurized to high pressure by a compressor of a gas filling device, and supplied to a fuel tank of an automobile.

Since the gas filling device handles highly flammable gas, equipment such as a compressor is expensive and installation cost is increased.

However, the number of automobiles that supply gas such as hydrogen gas or natural gas as fuel is very small at this stage, and therefore, it is not economically feasible to install expensive gas filling devices. As a result, a vicious cycle in which the number of gas filling apparatuses is installed and the gas supply is inconvenient to supply gas is not increased so that the spread of automobiles using gas is not increased.

It is desired to provide a safe and inexpensive gas filling device to overcome such a vicious cycle, but at present there is no gas filling device that can adequately respond to such a request.

As another conventional technique, for example, a fixed gas filling device (see Patent Document 1) having a charger mechanism provided in a housing is proposed.

However, even in such a prior art, it is difficult to provide a gas filling device which is cheap enough to be economically profitable and safer.

[Patent Document 1] Japanese Patent Laid-Open No. 2004-19716

 SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to simplify a gas filling control mechanism and to provide a safe and inexpensive gas filling apparatus.

To this end, the gas filling apparatus of the present invention is characterized in that a cylinder (17), and a charger mechanism connecting the cylinder (17) and a single charging means (charger coupler 7) are provided in the housings (4, 12). (Claim 1)

In addition, in the gas filling apparatus 1 of the present invention, a cylinder storing unit 2 and a control mechanism storing unit 3 are formed in the housings 4 and 12, and the gas storing unit 2 has a plurality of gas cylinders 17. Is stored, and each gas cylinder 17 is connected to the main pipe 19 through an installation pipe 18 provided with a cylinder switching valve 21 in the middle, and a flowmeter 26 and a shutoff valve 27 on the way. The charging hose 5 is connected to the front end of the main pipe 19, and a control device 42 for inputting a flow signal of the flowmeter 26 is provided in the control mechanism storage section 3, and the control mechanism storage section ( The operation panel 13 provided in 3) is provided with operation portions of the cylinder switching valve 21 and the shutoff valve 27.

And the said operation panel 13 is provided with the indicator 43 which displays the display signal received from the control apparatus 42. As shown in FIG.

The non-return valve 24 is interposed between the main pipes 19 to which each of the auxiliary pipes 18 is connected, and the pressure control valve 25 and the flow rate control valve 28 are connected to the main pipe 19. The filling coupler 7 is provided between the filling hoses 5 and the filling hose 5 through the filling valve 29.

In addition, the control device 42 receives the flow rate signal of the flow meter 26 to calculate the filling flow rate and the filling amount, and the indicator 43 displays the filling flow rate and filling amount received from the control device 42.

In addition, a plurality of slits 9 are provided in the housings 4 and 12.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described, referring an accompanying drawing.

1 is a perspective view of a gas filling apparatus 1 of the present invention, wherein the water filling apparatus 1 is composed of a cylinder storing portion 2 and a control mechanism storing portion 3.

A plurality of gas cylinders to be described later are accommodated in the housing 4 of the bobbin storage unit 2, and a charging hose 5 and two stop lines 6a and 6b are provided on the front of the housing 4, and the charging hose is provided. The filling coupler 7 attached to the tip of (5) is hung on the coupler hanger 8. Moreover, the slit 9 for ventilation is provided in the upper and lower sides of the housing 4. In the illustrated example, the caster 10 is provided, but the caster 10 does not necessarily need to be provided.

In the housing 12 of the control mechanism storing unit 3, devices such as valves, flow meters, pressure gauges, and gas senses, which will be described later, are accommodated. An operation panel 13 is provided on the front surface of the housing 12, and a signal line 14 is provided. The connected notifier 15 is provided, and the socket 16 for a commercial power supply is provided. Moreover, the back side of the housing 12 is provided with the slit for ventilation of the same shape as the slit 9 is formed.

FIG. 2 is a device configuration diagram of the gas filling apparatus 1, and in this embodiment, four gas cylinders 17a, 17b, 17c, and 17d (hereinafter, represented by reference numeral 17) are provided, and each gas cylinder is provided. 17 is connected to the main pipe 19 via the auxiliary pipes 18a, 18b, 18c, and 18d (indicated by reference numeral 18 in the following).

Each auxiliary pipe 18 has a cylinder main valve 20a, 20b, 20c, 20d (hereafter referred to by reference numeral 20 in the case of representative) and a cylinder switching valve 21a, 21b, 21c, 21d (hereafter in the case of reference). 21) is provided between the pressure gauges 23a, 23b, 23c, and 23d (hereinafter, represented by reference numeral 22 in the case of the pressure gauge main valves 22a, 22b, 22c, and 22d). Is indicated by reference numeral 23).

Between the main pipes 19 to which each of the installation pipes 18 is connected, a non-return valve 24a, 24b, 24c (hereinafter, denoted by reference numeral 24) is provided between the pressure control valve 25 ), A flow meter 26, a shutoff valve 27, and a flow regulating valve 28 are interposed therebetween. The filling hose 5 is connected to the tip of the main pipe 19, and the filling coupler 7 is provided at the tip of the filling hose 5 through the filling valve 29.

On the upstream side of the pressure regulating valve 25, a pressure gauge 31 is provided via a pressure gauge main valve 30, and a safety valve 33 is provided via a safety valve main valve 32. A pressure gauge 35 is provided on the downstream side of the pressure regulating valve 25 via a pressure gauge main valve 34, and a safety valve 37 is provided on the downstream side of the flow regulating valve 28 via a safety valve main valve 36. have.

The safety valves 33 and 37 are connected to the discharge pipe 11 via a pressure drop pipe 38, and a frame arrester 29 is provided at the tip of the pressure drop pipe 38. The downstream side of the flow regulating valve 28 provided in the main pipe 19 is connected to the depressurizing pipe 38 via the depressurizing valve 40, and the depressurizing hose 41 connected to the filling valve 29 provided in the filling hose 5. ) Is connected to the depressurizing pipe 38.

The flow rate signal of the flow meter 26 is input to the control unit 42, and the filling amount and the filling flow rate calculated by the control unit 42 are displayed on the indicator 43.

The rear end of the main pipe 19 is connected to the supplementary adapter 47 through the supplementary main valve 44, the filter 45, and the non-return valve 46, and the downstream side of the non-return valve 46 is the purge valve 48. It is connected to the depressurization pipe 38 through the through. The signal of the gas sensor 49 provided in the housing 12 is input to the notifier 15 via the signal line 14.

3 is an operation panel 13 provided on the front surface of the housing 12, the operation panel 13 has an indicator 43 having a charge amount display portion 43a and a charge flow rate display portion 43b, and a cylinder switching valve 21a, 21b, 21c. 21 d), the pressure gauge 31, 35, the pressure regulating valve 25, the flow regulating valve 28, the shutoff valve 27, the operating part of the depressurization valve 40, and the static electricity removing sheet 49 are provided. .

In the illustrated example, the filling amount display portion 43a is displayed numerically, and the filling flow rate display portion 43b describes a flow rate per hour, that is, a scale 43c of Nm ³ / h. This scale 43c is, for example, 100 to 600 Nm ³ / h.

4 shows a part of the slit 9 formed in the housings 4, 12.

A U-shaped channel 51 having an opening (opening point) 50 is attached to the upper surface of the slit 9, and a B-shaped channel 52 is attached to the upper side of the slit 9. With this structure, air can freely enter and exit the housings 4 and 12, and rainwater does not enter the housings 4 and 12.

5 is a cross-sectional view of a portion of the coupler hanger 8 provided in the housing 4, in which the filling valve 29 is caught by the coupler hanger 8, and the portion of the filling coupler 7 has a coupler cover 53. Is covered. The coupler cover 53 is rotatably provided in the housing 4 and is held in the open state by the locking mechanism 54. Moreover, the packing 55 is provided in the inside of the coupler cover 53, and the filling coupler 7 does not rattle when it moves. When the coupler cover 53 is opened, the reset switch SW is operated to reset the display system 43. This reset switch SW is composed of a micro switch.

Next, the handling operation of the gas filling apparatus 1 will be described.

In the gas filling station, the stop line 6a is connected to a stop (not shown) so that the gas filling device 1 is connected, and the socket 16 of the power supply line is connected to an outlet (not shown) so that the control device 42 and the notifier are connected. 15 is energized.

Then, the pressure gauge main valve 22 is opened, and the gas pressure upstream of the gas pressure regulating valve 25 in the gas cylinder 17 is displayed on the pressure gauge 31, and the pressure gauge main valve 34 is opened to press the pressure regulating valve ( The gas pressure on the downstream side of 25) is indicated on the pressure gauge 35. In addition, the safety valve main valves 32 and 36 are opened to release the abnormal gas pressure to the depressurization pipe 38 through the safety valves 33 and 37 to discharge from the discharge pipe 11 into the atmosphere.

In order to fill gas into a vehicle, the person who works makes contact with the static electricity removing sheet 49 of the operation panel 13 to remove static electricity that is static electricity to him. Next, the ground wire 6b is contacted with an automobile to remove static electricity from the automobile, and the charging coupler 7 removed from the coupler hanger 8 is connected to the charging adapter of the gas cylinder of the automobile. Then, the pressure regulating valve 25 is operated to adjust to a predetermined filling pressure, the flow rate adjusting valve 28 is operated to adjust to a predetermined filling flow rate, the shutoff valve 27 is opened, and the cylinder switching valve 21a is opened. .

By opening the cylinder switching valve 21a, the gas in the gas cylinder 17a flows into the cylinder main valve 20a, the cylinder switching valve 21a, the check valve 24, the pressure regulating valve 25, and the flow meter 26. ), The shutoff valve 27, the flow control valve 28, the filling valve 29 and the filling coupler (7) is filled into the gas cylinder of the vehicle.

The metering signal of the flowmeter 26 is input to the control device 42, and the filling amount and the filling flow rate calculated by the control device 42 are displayed on the indicator 43.

The filling flow rate displayed on the filling flow rate display section 43b of the indicator 43 is viewed. When the filling flow rate is not the desired filling flow rate, the filling flow rate is adjusted by adjusting the flow rate adjusting valve 25.

When the display of the filling flow rate display portion 43b of the indicator 43 becomes zero, the pressure in the gas cylinder 17a and the pressure in the gas cylinder of the vehicle are balanced, so that the cylinder switching valve 21b is opened to open the gas cylinder ( Switch to gas charging from 17b). Moreover, since the backflow prevention valve 24a is provided, the gas of the gas cylinder 17b does not flow back to the gas cylinder 17a. In the same way, the gas cylinders 17c and 17d are sequentially switched to perform gas charging.

When the desired amount of gas is filled, the shutoff valve 27 and the cylinder switching valve 21 are closed, the filling valve 29 is closed, the filling coupler 7 is removed and the coupler hook 8 is connected to the ground wire ( Take off 6b). Then, the charging fee is calculated based on the charging amount displayed on the charging amount display unit 43a of the indicator 43.

When the filling valve 29 is closed, the residual pressure in the filling coupler 7 flows out to the depressurizing pipe 38 through the depressurizing hose 41, and the filling coupler 7 is discharged into the atmosphere from the discharge pipe 11. It can be easily removed from the charging adapter of the vehicle. Moreover, since the opening part of the discharge pipe 11 is high, even if gas is discharged to air | atmosphere, it will not become dangerous.

When the gas filling to the vehicle is completed and moved, the depressurization valve 40 is opened to release the gas in the filling hose 5 from the discharge tube 11 through the depressurizing tube 38. Then, the socket 16 of the power supply line is removed, the ground wire 6a is removed, and the discharge tube 11 is replaced with a short discharge tube 11a.

As shown in FIG. 6, the gas filling device 1 is placed in the loading box 57 of the truck 56, and the notifier 15 of the gas sensor 49 is placed in the cab 58. Connect to and transport to a gas station.

Since the notifier 15 is placed in the cab 58 in this way, it is possible to easily cope with it when gas leakage is detected during transportation of the gas filling device 1. Moreover, since the gas in the filling hose 5 was taken out, there is little risk of carrying the gas filling apparatus 1 in transportation. In addition, since it is replaced by the short discharge pipe 11a, there is no problem of height limitation during transportation of the gas filling device 1.

In the gas filling station, a supplementary coupler of a gas filling apparatus (not shown) is connected to the supplemental adapter 47 of the gas filling apparatus 1, and the cylinder main valve 20, the cylinder switching valve 21, and the supplementary main valve ( Open 44). By opening the supplementary main valve 44, the gas from the gas supplement device is connected to the non-return valve 46, the filter 45, the supplementary main valve 44, the cylinder switching valve 21 and the cylinder main valve 20. Through the gas cylinder 17 is replenished.

When the gas replenishment to the gas cylinder 17 is complete | finished, the cylinder main valve 20, the cylinder switching valve 21, and the supplement main main valve 44 are closed, and the depressurization valve 48 is opened. By opening the depressurization valve 48, the gas upstream of the supplementary main valve 44 is discharged from the discharge pipe 11 through the depressurization valve 48 and the depressurization pipe 38. Then, the replenishment coupler of the gas refilling device is removed from the replenishing adapter 47, and the gas filling device 1 is transported by truck to the gas filling station.

In addition, in the above description, when the gas in the gas cylinder 17 becomes small, the gas filling device 1 is transported to the gas filling station to supplement the gas, but the gas cylinder 17 is removed from the gas filling device 1. Only the gas cylinder 17 may carry a gas replenishment station to replenish gas. The gas rollers may be replenished with gas at the gas filling station.

The illustrated embodiment is only an example and adds that it is not a technique for limiting the technical scope of the present invention.

The effect of this invention provided with the structure mentioned above is enumerated below.

(1) Since the gas cylinder and the control mechanism are housed in the housing, they can be mass-produced at the factory, thereby providing a gas filling device of low cost.

(2) Since a plurality of gas cylinders are accommodated in the gas cylinders, it is possible to obtain a high pressure gas without using a compressor or the like, thereby making the charging device simple and inexpensive.

(3) Since the backflow prevention valve is provided between the main pipes connecting the auxiliary pipes, the gas does not flow back.

(4) Since the safety valve is provided in the main pipe, it is possible to prevent abnormal pressure in the main pipe.

(5) The gas supplementation to the gas cylinder becomes easy since the supplementary adapter for gas supplementation is provided.

(6) Since the residual pressure of the filling coupler and the supplementary adapter can be released, the filling coupler and the supplementary adapter can be easily removed.

(7) Since the filling speed is displayed on the indicator, gas filling at the overflow speed can be prevented by adjusting the flow regulating valve based on this indication.

(8) Since the slits are provided in the housing, the inside of the housing is ventilated, and in the event of gas leakage, no dangerous gas remains in the housing.

(9) A gas sensor is provided in the housing, so that a gas leak can be quickly dealt with.

(10) Inexpensive and safe gas filling apparatuses can be mass-produced at the factory, and the expansion of gas filling stations can be promoted, so that the supply of gas-fueled automobiles can be promoted.

Claims (6)

delete A cylinder housing and a control mechanism housing are formed in the housing, and a plurality of gas cylinders are accommodated in the cylinder storage, and each gas cylinder is connected to the main pipe through an installation pipe having a cylinder switching valve interposed therebetween. The filling hose is connected to the front end of the main pipe which is equipped with the shut-off valve on the way, and the control unit for inputting the flow signal of the flowmeter is provided in the control mechanism storage unit. Gas filling apparatus characterized in that it is provided. The method of claim 2, And a display for displaying a display signal received from the control device. The method of claim 2 or 3, Between the main pipes connecting the respective sub-pipes, a backflow prevention valve is provided, the main pipe is provided with a pressure regulating valve and a flow regulating valve on the way, and the filling hose is provided with a filling coupler through a filling valve. Gas filling device characterized in that. The method of claim 2 or 3, The control device receives the flow signal of the flow meter to calculate the filling flow rate and the filling amount, the indicator is a gas filling device, characterized in that for displaying the filling flow rate and filling amount received from the control device. The method of claim 2 or 3, The housing is a gas filling device, characterized in that it has a plurality of slits in the form of long and narrow holes for ventilation on the side or the rear of the housing.

Images