JP2019100392A - Device for simply charging lp gas - Google Patents

Abstract

To enable LP gas to be charged from a bulk storage tank to an FRP container.SOLUTION: To one end of a charging hose (2) supplying LP gas, a connection adapter (6) is attached, which is detachably connected to a liquid extraction valve (26) of a bulk storage tank (25) storing LP gas, and to the other end of the charging hose (2), a coupling type first charging connection part (8) is detachably connected, which the first charging connection part comprises a coupling container valve (21) provided in an FRP (fiber-reinforced plastic) container (20), a female joint (9) detachably connected to the coupling container valve (21) of the FRP container (20), and a stop valve (10) for shutting off a flow passage for LP gas.SELECTED DRAWING: Figure 1

Description

The present invention relates to a simple filling apparatus for filling an FRP gas container with LP gas from a bulk storage tank.

Conventionally, metal household cylinders or business cylinders (metal containers) filled with LP gas have been used in sparsely populated areas where mountain gas is not widespread, in mountainous areas, island areas, or at various event venues, and also at the time of disasters It is widely used as a fuel for cooking food.

In general, LP gas is filled in divided cylinders at gas filling stations where gas dealers have large gas tanks and is sold to homes or businesses. When this cylinder is filled with LP gas, the connection is screwed to the valve valve of the cylinder via a filling hose connected to a large gas tank, and a pump linked to the gas tank is driven to forcibly charge the LP gas. The

In addition, when LP gas is filled into a gas cylinder of a car using LP gas as fuel, pressurizing gas is injected into the storage tank and pressurized, and then charging into the cylinder is performed (for example, Patent Document) 1 and 2).

JP 2002-181290 A JP 2004-69029 A

All of the above-mentioned inventions require a tank for storing LP gas and a tank for pressurized gas, which makes the equipment large and inconvenient. On the other hand, recently, lightweight and strong small plastic resin cylinders (hereinafter referred to as FRP containers) have been widely used instead of metal gas cylinders which are heavy and inconvenient to handle. This FRP container is made of a fiber reinforced plastic material and is light in weight, about half that of a metal container, has pressure resistance twice as high as that of a metal container, is also resistant to corrosion, and can be used for fires. It is a container with safety and strength that does not explode even if it is present.

At present, small-sized containers with a capacity of less than 10 kg are widely used in this FRP container, and its use is lightweight, durable, and easy to carry, and as a fuel for cooking out during disaster countermeasures, and generally In houses, it can be used as a gas fan heater and a gas clothes dryer in a room without a gas plug, as a fuel for camping outdoors, and also widely used as a fuel for parasol heaters for outdoor heating .

Since this FRP container is also an LP gas container, it needs to be filled with LP gas if the LP gas disappears. However, FRP container filling stations are not as ubiquitous as gas stations in town, and can not be filled without going to a filling station where a large LP gas tank is installed. Furthermore, FRP containers are different from metal cylinders, and coupling container valves are used to improve safety in connection with various devices. Therefore, it is impossible to make a connection with a screw type connector attached to a gas filling hose like a valve valve attached to a normal LP gas container.

Also, in recent years, so-called bulk storage tanks with large storage capacity are widely used instead of LP gas cylinders for business or home use. However, since the FRP container has not yet spread sufficiently, the existing bulk storage tank filling hose can not have a coupling connection for FRP container filling. Therefore, in order to fill the FRP container with the LP gas, it could not be filled without going to a filling station with a large storage tank.

Therefore, it is easy to fill LP gas from the existing bulk storage tank into the FRP container, and as an emergency fuel at the time of disaster or by handling the FRP container at gas dealers, it is strong and lightweight FRP. It is an issue to promote the spread of containers.

According to the invention of claim 1, the connection adapter 6 detachably connected to the liquid outlet valve 26 of the bulk storage tank 25 storing the LP gas is attached to one end of the filling hose 2 for supplying the LP gas. It is characterized in that a coupling type first filling connecting portion 8 detachably connected to a coupling container valve 21 provided in a fiber reinforced plastic FRP container 20 is attached to an end. The first filling connection portion 8 is characterized by comprising a female joint 9 detachably connected to the coupling container valve 21 of the FRP container 20, and a stop valve 10 for blocking the flow path of the LP gas. Do.

Therefore, the first simple LP gas filling apparatus 1A connects the tip of the connection adapter 6 connected to one end of the filling hose 2 to the liquid outlet valve 26 of the bulk storage tank 25 and the first filling connection part 8 connected to the other end as FRP. The coupling container valve 21 of the container 20 can be simply connected. Furthermore, in the case of filling with LP gas, it is possible to make it flow by means of a pressure difference (0.3 MPa or more) between the pressure in the bulk storage tank 25 and the pressure in the FRP container 20 without using a liquid feed pump or pressurized gas. it can. Therefore, the LP gas can be easily filled in accordance with the High Pressure Gas Safety Act. On the other hand, the FRP container 20 is lightweight and strong, so that it is convenient to carry, and further, because it is made of a synthetic resin, it is excellent in color variation and fashionability, and therefore it does not feel uncomfortable even when installed indoors. Furthermore, since it can be used as a fuel for a gas stove as a heating device in a room without an indoor air conditioner or a gas outlet, it is widely used to fill the FRP container with gas. It is convenient because the FRP container 20 can be easily filled from the bulk storage tank 25 using the first LP gas simplified filling apparatus 1A according to the present invention without going to a certain filling station. Furthermore, since the bulk storage tank 25 has an earthquake-resistant structure even in the case of an emergency disaster or the like in which the lifeline is cut off, the first LP gas simplified filling apparatus 1A of the present application can be used easily without using any tools. Since the FRP container 20 can be filled with the LP gas, fuel can be conveniently secured in an emergency such as a disaster.

According to the invention of claim 3, the connection adapter 6 detachably connected to the liquid outlet valve 26 of the bulk storage tank 25 storing the LP gas is attached to one end of the filling hose 2 for supplying the LP gas. At the end, a first filling connecting portion 8 comprising a female joint 9 detachably connected to a coupling vessel valve 21 provided in a fiber reinforced plastic FRP vessel 20 and a stop valve 10 for blocking the flow path of LP gas The first flow path 4 connected to the FRP container 20 is connected to one side of the branch pipe 15 attached at an arbitrary position of the middle portion of the filling hose 2 and the second flow connected to the other spread type metal container 28 The second flow path is characterized in that the second flow path is provided with a filling connection valve 17 detachably attached to the valve valve 29 of the spread type metal container 28 at the tip via a stop valve 16. Further, the FRP container 20 is characterized in that a measuring instrument 30 for measuring the filling amount of the LP gas is attached to the lower part.

Therefore, the second simplified LP gas filling apparatus 1B connects the tip of the connection adapter 6 connected to one end of the filling hose 2 to the liquid outlet valve 26 of the bulk storage tank 25 and the first filling connection part 8 connected to the other end as FRP. The coupling container valve 21 of the container 20 can be conveniently connected manually without the use of an instrument. Furthermore, when LP gas is filled, it can be filled by flowing it under the pressure difference in the bulk storage tank 25 and the pressure difference (0.3 MPa or more) in the FRP container 20, so it is simple according to the High Pressure Gas Safety Act. LP gas filling can be performed. Furthermore, by measuring the filling amount with the measuring instrument 30 attached to the FRP container 20, it is possible to prevent overfilling and underfilling. Further, in the second filling apparatus 1 B, if the overfill or underfill into the FRP container 20 should occur by connecting the empty cylinder 28 to the second flow path 5, the excess LP gas is used as the empty cylinder 28. Since the pressure in the FRP container 20 can be released to the empty cylinder 28, the filling operation can be performed smoothly.

According to the fifth aspect of the present invention, the connection adapter 6 detachably connected to the liquid outlet valve 26 of the bulk storage tank 25 storing the LP gas is attached to one end of the filling hose 2 for supplying the LP gas. The other end is coupled to a coupling type second filling connection portion 11 detachably connected to a coupling container valve 21 attached to an FRP container 20 made of fiber reinforced plastic, and LP positioned on the outer bottom surface of the FRP container 20 A measuring instrument 31 for measuring the gas filling amount is electrically connected to a solenoid valve 13 provided in the second filling connection portion 11. Further, the second filling connection portion 11 is composed of a female joint 12 detachably connected to the coupling container valve 21 of the FRP container 20 and a solenoid valve 13, and the solenoid valve 13 is located in the FRP container 20. When a fixed amount of LP gas is filled, the valve is closed by an electrical signal from a measuring instrument 31 located at the lower part of the FRP container 20 and measures the filled amount of LP gas, and the fixed amount of LP gas is filled in the FRP container 20 It is characterized in that it is possible and prevents overfilling of LP gas.

Therefore, the third LP gas simplified filling apparatus 1C has the connection adapter 6 attached to one end of the LP gas filling hose 2 and the second filling connection part 11 connected to the coupling container valve 21 of the FRP container 20 connected to the other end. It is an economical device because it has a simple configuration. Further, when filling LP gas from the bulk storage tank 25 into the FRP container 20, the connection adapter 6 is connected to the liquid outlet valve 26 of the bulk storage tank 25 and the other end is the FRP container of the female joint 12 of the second filling connection part 11. When each valve is opened by connecting to the 20 coupling container valves 21, the pressure difference (0.3 MPa or more) of LP gas flows from the bulk storage tank 25 side with high LP gas pressure to the FRP container 20 side with low internal pressure. The FRP container 20 can be easily filled with LP gas. Furthermore, since the connection between the coupling container valve 21 of the FRP container 20 and the female joint 12 of the second filling connection portion 11 can be simply and reliably connected by the coupling type one-touch, there is no risk of gas leakage and safety is ensured. It is. Furthermore, the FRP container 20 is placed on the measuring instrument 31, the filling amount is measured, a signal is transmitted to the solenoid valve 13 attached to the second filling connection portion 11, the valve is closed reliably, and the LP gas is Overfilling can be prevented.

It is a schematic diagram of the 1st LP gas simple filling apparatus which shows 1st Embodiment. It is a schematic diagram of the 2nd LP gas simple filling apparatus which shows 2nd Embodiment. It is a schematic diagram of the 3rd LP gas simple filling apparatus which shows 3rd Embodiment. The flowchart of the operation | work procedure of the 2nd LP gas simplified filling apparatus which shows the 2nd Embodiment of this invention is shown.

An embodiment of the present invention will be described based on the drawings. FIG. 1 is a schematic view of a first simplified LP gas filling apparatus showing a first embodiment. As shown in FIG. 1, the first LP gas simplified filling apparatus 1A is detachably attachable to the filling hose 2 for high pressure gas for filling the LP gas and the liquid outlet valve 26 of the bulk storage tank 25 storing liquefied petroleum gas. It comprises a connection adapter 6 to be attached and a first filling connection 8 for coupling which is connected to the coupling vessel valve 21 of the FRP vessel 20. This first filling connection 8 is a coupling vessel valve 21 of the FRP vessel 20. And a stop valve 10 for interrupting the filling hose 2 which is a flow path of the LP gas so as to open and close.

The bulk storage tank 25 is a tank for storing liquefied petroleum gas (hereinafter referred to as LP gas), and has a capacity of less than 3 tons installed or buried in each home or office. Since LP gas storage has a safety and safety standard defined by the liquefied petroleum gas law, there are severe limitations when filling by a pump or gas pressure or the like.

However, when filling using LP gas pressure difference without using the pump or gas pressure etc., there is a certain security standard for safety, but LP gas is used by using pressure difference in the container. Transfer is permitted. On the other hand, as the LP gas container, metal gas cylinders conventionally installed in each home or office are used, and various LP gas cylinders having different capacities depending on applications, for example, 10 kg, 20 kg, 50 kg cylinders are used. However, recently, due to technological progress, lightweight and strong LP gas containers made of synthetic resin are known.

In particular, this synthetic resin LP gas container (hereinafter referred to as "FRP container") has a double structure of a pressure container formed of a fiber reinforced plastic material and a protective cover, and its weight is also about half that of a metal container. Therefore, the high pressure resistance is twice as high as that of a metal container, and since it is formed of a plastic material, it is strong in corrosion resistance and less susceptible to rusting in coastal areas and can be used safely. Furthermore, even in the event of a fire, a pressure vessel made of glass fiber material does not melt with heat and has safety and strength that does not explode, and since the vessel can be colored, it has good aesthetics and is used indoors without discomfort can do. Furthermore, since the container is translucent, the remaining amount of gas can be visually observed from the outside, and there are many advantages such as being able to prevent gas exhaustion, which is convenient and convenient. It is desirable to spread widely.

Therefore, in the present invention, the FRP container can be easily filled from the bulk storage, and in the event of an emergency such as a disaster, the filling can also be performed from the bulk storage installed in each home or office. An apparatus is provided.

The first LP gas simplified filling apparatus (hereinafter referred to as the first filling apparatus) 1A will be described. The connection adapter 6 attached to one end of the filling hose 2 is formed in a screw type, and the connection of the liquid outlet valve 26 of the bulk storage tank 25 is performed. Screw in and connect with the female screw provided on the mouth. The screwing can be easily tightened to the connection port of the liquid outlet valve 26 by turning the handle of the connection adapter 6 manually.

The first filling connection portion 8 attached to the other end of the filling hose 2 has a female joint 9 detachably connected to the coupling container valve 21 of the FRP container 20, and a filling hose 2 forming a flow path of LP gas. Since the coupling container valve 21 of the FRP container 20 is formed in a male type coupling, the FRP container 20 can be detachably connected with the female joint 9 by one-touch operation. . Therefore, the connection of the first filling device 1A can be easily performed manually without using any device.

The connection adapter 6 attached to one end of the filling hose 2 is connected to the liquid outlet valve 26 of the bulk storage tank 25 and the female joint 9 of the filling connection portion 8 attached to the other end. Are coupled to the coupling container valve 21 of the FRP container 20. Next, when the stop valve 10 of the first filling connection portion 8 is opened and the liquid outlet valve 26 of the bulk storage tank 25 is opened, the pressure difference between the bulk storage tank 25 with high gas pressure and the FRP container 20 with low gas pressure The FRP container 20 can be filled by flowing LP gas using 0.3 MPa or more.

For example, when the liquid phase in the bulk storage tank 25 is vaporized to generate LP gas, the pressure in the bulk storage tank 25 is increased, and the pressure in the container is increased through the filling hose 2 from the opened liquid outlet valve 26. Since the fluid can be made to flow in the low FRP container 20 with a pressure difference (0.3 MPa or more), the LP gas can be supplied easily and easily. When the FRP container 20 is filled with a predetermined amount of LP gas, there is no pressure difference between the pressure in the bulk storage tank 25 and the pressure in the FRP container 20, the transfer of the LP gas stops and the stop valve 10 of the first filling connection portion 8 It can be filled by closing the liquid outlet valve 26 of the bulk storage tank 25.

As shown in FIG. 2, a second LP gas simplified filling apparatus (hereinafter referred to as a second filling apparatus) 1B showing a second embodiment is provided at one end of a high pressure gas filling hose 2 for filling an LP gas as shown in FIG. Attach the connection adapter 6 connected to the liquid outlet valve 26 of the bulk storage tank 25 and connect the first filling connection 8 connecting to the FRP container 20 at the other end, and connect the branch pipe 15 to any intermediate point of this filling hose 2 A first flow path 4 is provided to intervene and send liquid to the FRP container 20 side, and a second flow path 5 connected to a spread type metal container 28 (hereinafter referred to as an empty cylinder).

The pressure in the flow channel is measured so that LP gas can be smoothly transferred to the flow channel between the bulk storage tank 25 and the FRP container 20 or the flow channel between the FRP container 20 and the empty cylinder 28 A pressure gauge 33 is mounted on a branch from the first flow passage 4 above the first filling connection 8.

The pressure measurement in the bulk storage tank 25 by the pressure gauge 33 can measure the pressure in the bulk storage tank 25 by closing the valves of the FRP container 20 and the empty cylinder 28 and opening the liquid removal valve 26 of the bulk storage tank 25. . Further, when the valve of the empty cylinder 28 is opened while the liquid outlet valve 26 of the bulk storage tank 25 is closed, the pressure in the filling hose 2 can be released to the empty cylinder 28. Furthermore, when the valve valve 29 of the empty cylinder 28 is closed while the liquid takeout valve 26 of the bulk storage tank 25 is closed and the coupling container valve 21 of the FRP container 20 is opened, the pressure in the FRP container can be measured.

The branch pipe 15 connects the filling hose 2 connected at one end to the connection adapter 6 connected to the liquid outlet valve 26 of the bulk storage tank 25 at one end, and branches to one end of the first flow path 4 provided at one branch Attach the first filling connection part 8 connected to the container 20, and connect the filling connection valve 17 connected to the valve valve 29 of the empty cylinder 28 at the tip via the stop valve 16 to the second flow path 5 provided on the other side branched It is connected.

The connection adapter 6 is formed by screwing the connection portion, and is screwed and connected to a female screw portion provided at the connection port of the liquid outlet valve 26 of the bulk storage tank 25. The screwing can be easily tightened to the connection port of the liquid outlet valve 26 by turning the handle of the connection adapter 6 manually. Further, since the first filling connection portion 8 has the female joint 9 detachably connected to the coupling container valve 21 of the FRP container 20 attached, the first filling connection portion 8 can be detachably connected at one touch.

The first filling connection portion 8, the bulk storage tank 25 and the FRP container 20 used for the second filling device 1B are the same as the first filling connection portion 8, the bulk storage tank 25 and the FRP container 20 used for the second filling device 1A. Since the description is redundant, the description here is omitted.

By positioning the measuring device 30 for measuring the filling amount of LP gas in the FRP container 20 on the lower surface of the FRP container 20, the filling amount of the LP gas can be visually checked, so overfilling and underfilling can be performed at a glance. It can be judged. Also, if overfilling or underfilling occurs, it will be immediately recognized so that appropriate measures can be taken immediately. The measuring instrument 30 may not be a special measuring instrument, but may be a well-known weighing scale or a liquid level measuring system.

The connection adapter 6 attached to one end of the filling hose 2 is connected to the liquid outlet valve 26 of the bulk storage tank 25 and the first filling attached to the end of the first flow path 4. Connect the female joint 9 of the connection part 8 to the coupling container valve 21 of the FRP container 20, and connect the filling connection valve 17 connected to the branched second flow path 5 and the valve valve 29 of the empty cylinder 28 It is

When LP gas is filled from the bulk storage tank 25 to the FRP container 20 using the second filling apparatus 1B, as shown in the flowchart of FIG. 4, the procedure (1) includes the bulk storage tank 25, the FRP container 20 and the empty cylinder 28. Are connected via branch pipes 15 respectively. In the procedure (2), the amount of LP gas to be filled in the FRP container 20 is set (the weight of the empty FRP container and the weight of the first filling connection portion 8 are measured in advance to determine the plus filling amount). In the procedures (3) and (4), the pressure measurement in the filling hose 2 between the bulk storage tank 25 and the FRP container 20 and the empty cylinder 28 is performed beforehand (the pressure gauge 33 is the first flow above the first filling connection portion 8). ) And check that the pressure difference between the bulk storage tank 25 and the FRP container 20 is 0.3 MPa or more. In step (5), after closing the stop valve 16 of the second flow path 5, the bulk storage tank 25 and the FRP container 20 are opened by opening the liquid removal valve 26 of the bulk storage tank 25 and the stop valve 10 of the FRP container 20. LP gas is filled into the FRP container 20 with a pressure difference of In the procedure (6), after confirming that the FRP container 20 is filled with a predetermined amount of LP gas with the measuring instrument 30, the stop valve 10 of the first filling connection portion 8 is closed and the liquid outlet valve of the bulk storage tank 25 26 is closed to complete the filling.

The filling of the LP gas into the FRP container 20 requires that the FRP container 20 is placed on the measuring instrument 30, and that the liquid phase filled in the container is visible from the outside, but overfilling or underfilling It may happen. When the LP gas is overfilled, the LP gas can not be returned to the original bulk storage tank 25. Therefore, it is not only legal but also dangerous to dispose the overfilled LP gas as it is to discharge to the outside air and discard it. Therefore, the second filling device 1B can recover the LP gas in which the FRP container 20 is overfilled in the empty cylinder 28 in which the overfilled LP gas is connected to the second flow path 5.

In order to recover the LP gas filled in the FRP container 20, the liquid outlet valve 26 of the bulk storage tank 25 is closed, the stop valve 16 of the second flow passage 5 is opened, and the FRP container 20 and The LP gas can be transferred at a pressure difference with the empty cylinder 28. Transfer of the overfilled LP gas is measured by the measuring device 30 on which the FRP container 20 is placed, and the overfill amount is recovered by closing the stop valve 10 and the stop valve 16 when a fixed amount of gas remains. can do.

When the pressure difference is too small to transfer, by heating the FRP container 20, the LP gas in the FRP container is expanded and pressurized to generate a pressure difference, and the empty cylinder 28 is filled with the LP gas. be able to. Therefore, it is very economical because the overfilled LP gas is not wasted.

Furthermore, since LP gas is charged from the bulk storage tank 25 side to the FRP container 20 side with a pressure difference, when the pressure difference disappears during filling due to a change in the outside air temperature, etc., the LP gas stops flowing during filling, and the FRP container 20 May not be able to be filled with a predetermined amount of LP gas.

In this case, as shown in the procedure (7) of the flowchart, the liquid takeout valve 26 of the bulk storage tank 25 is closed, and the stop valve 16 of the second flow passage 5, the connection valve 17 for filling and the valve valve 29 of the empty cylinder 28 are opened. Then, by opening the stop valve 10 of the FRP container 20, the pressure in the FRP container 20 is transferred to the empty cylinder 28 and withdrawn, thereby reducing the pressure in the FRP container 20, and the bulk storage tank 25 and the FRP container 20 After closing the pressure difference with the pressure of 0.3 MPa or more, the stop valve 16 or the filling connection valve 17 of the second flow passage 5 is closed, the liquid outlet valve 26 of the bulk storage tank 25 is opened, and the FRP container 20 is The filling can be resumed to fill a predetermined amount of LP gas.

As shown in the second filling apparatus 1 B, the filling hose 2 is provided with the second flow path 5 via the branch pipe 15, and the empty cylinder 28 is connected to the second flow path 5. When filling or underfilling occurs, excess LP gas can be filled into the empty cylinder 28 or the pressure in the FRP container 20 can be released into the empty cylinder 28, so that the filling operation can be performed smoothly. Further, it is needless to say that the first channel 4 can be closed to directly fill the empty cylinder 28 of the second channel 5 from the bulk storage tank 25 with the LP gas.

The third LP gas simplified filling apparatus (hereinafter referred to as the third filling apparatus) 1C can be attached to and removed from the liquid outlet valve 26 of the bulk storage tank 25 storing liquefied petroleum gas at one end of the LP gas filling hose 2 as shown in FIG. And the second filling connection portion 11 having a coupling function of detachably connecting to the coupling container valve 21 of the FRP container 20 is connected to the other end of the filling hose 2. Yes.

The second filling connection portion 11 is a coupling of the FRP container 20 with the solenoid valve 13 electrically connected to the measuring device 31 positioned on the outer bottom surface of the FRP container 20 to measure the filling amount of the FRP container 20. It is comprised by the receptacle valve 21 and the female coupling 12 detachably connected. The bulk storage tank 25 and the FRP container 20 described above are the same as the bulk storage tank 25 and the FRP container 20 in the first filling device 1A described in the first embodiment, and thus the description will be omitted because they overlap. .

When the FRP container 20 is filled with a predetermined amount of LP gas, the measuring instrument 31 sends a signal to the solenoid valve 13 to automatically close the valve to shut off the inflow of the LP gas, thereby predetermined amount of LP gas Can be filled. The measuring instrument 31 attached to the FRP container 20 measures weight, but when the liquid level filled in the container is measured to measure a certain filling amount, the signal is sent to the solenoid valve 13 and automatically The measuring device may be a known liquid level gauge that closes the valve. In addition, since the coupling container valve 21 of the FRP container 20 and the female joint 12 of the second filling connection portion 11 can be connected simply and reliably by one touch, there is no risk of gas leakage and they can be used safely. Can.

The filling of the LP gas is performed after the connection adapter 6 is connected to the liquid outlet valve 26 of the bulk storage tank 25 and the female joint 12 of the second filling connection portion 11 is connected to the coupling container valve 21 of the FRP container 20. By opening the solenoid valve 13 of the filling connection portion 11 and opening the liquid outlet valve 26 of the bulk storage tank 25, the LP gas is pressurized from the high pressure bulk storage tank 25 side to the FRP container 20 side with low internal pressure. When the fluid flows by the difference (0.3 MPa or more) and the LP gas is filled in the FRP container 20 and the predetermined amount of LP gas is filled in the FRP container 20, the measuring instrument 31 located on the outer bottom surface of the FRP container 20 Senses a predetermined amount of weight, sends the signal to the solenoid valve 13 provided in the filling connection portion 11, and operates the solenoid valve to shut off the flow path, whereby a fixed amount of LP gas is delivered to the FRP container 20. To fill Door can be.

Therefore, the measuring device 31 located on the outer bottom surface of the FRP container 20 measures the filling amount and automatically shuts off the solenoid valve 13 by transmitting a signal to the solenoid valve 13 attached to the second filling connection portion 11 As a result, overfilling of LP gas can be prevented.

In the filling of LP gas from the bulk storage tank 25 to the FRP container 20 shown in the first, second, and third filling apparatus described above, the filling is performed by the pressure difference between the pressure in the bulk storage tank 25 and the pressure in the FRP container 20. However, since the temperature difference largely changes in seasons such as summer or winter, a predetermined pressure difference may not occur due to the change of the outside air temperature. Therefore, in addition to the above-mentioned measures, a heater 33 is attached to the bulk storage tank 25 to transfer LP gas efficiently, or a cooling device (not shown) is attached to the FRP container 20 to Needless to say, it is possible to generate a differential pressure by raising the temperature of the reservoir liquid or lowering the temperature of the FRP container 20 to smoothly feed the LP gas.

Furthermore, the heating device 33 heats or cools the bulk storage tank to a predetermined temperature (about 40 ° C.) to pressurize the liquid phase, and the switch turns on when the temperature becomes higher than the set temperature or lower than the predetermined temperature. A thermostat (not shown) that turns off may be attached to be able to maintain the set temperature.

1A 1st LP gas simplified filling apparatus 1B 2nd LP gas simplified filling apparatus 1C 3rd LP gas simplified filling apparatus 2 filling hose 4 first flow path 5 second flow path 6 connection adapter 8 first filling connection portion 9 female joint 10 stop valve 11 2nd filling connection part 12 female joint 13 solenoid valve 15 branch pipe 16 stop valve 17 filling connection valve 20 FRP container 21 coupling container valve 25 bulk storage tank 26 liquid extraction valve 28 popular type metal container 29 valve valve 30 measuring device 31 measurement 33 pressure gauge

Claims (6)

Attach one end of a filling hose (2) for supplying LP gas with a connection adapter (6) that is detachably connected to the liquid outlet valve (26) of the bulk storage tank (25) storing the LP gas, and the filling hose (2) Coupling-type first filling connection part (8) detachably connected to the coupling container valve (21) provided on the fiber reinforced plastic FRP container (20) at the other end of The first LP gas simplified filling device. The first filling connection portion (8) includes a female joint (9) detachably connected to the coupling container valve (21) of the FRP container (20), and a stop valve (10) for blocking the flow path of LP gas. The first LP gas simple filling apparatus according to claim 1, wherein Attach one end of a filling hose (2) for supplying LP gas with a connection adapter (6) that is detachably connected to the liquid outlet valve (26) of the bulk storage tank (25) storing the LP gas, and the filling hose (2) Female connector (9) detachably connected to the coupling container valve (21) provided in the fiber reinforced plastic FRP container (20) at the other end of the) and the stop valve (10) for blocking the flow path of LP gas A first filling connection (8), and the first flow path connected to the FRP container (20) to one of the branch pipes (15) attached at an arbitrary position in the middle portion of the filling hose (2) (4) is connected, and the other is connected to the second flow path (5) connected to the spread type metal container (28), and the second flow path is spread at the tip through the stop valve (16) Filling that is removably attached to the valve valve (29) of the metal container (28) The 2LP gas simple filling device, characterized by comprising attaching the connecting valve (17). The second FRP gas simplified filling device according to claim 3, wherein the FRP container (20) is provided at the lower part thereof with a measuring device (30) for measuring the filling amount of LP gas. Attach one end of the filling hose (2) for supplying the LP gas to the connection adapter (6) which is detachably connected to the liquid outlet valve (26) of the bulk storage tank (25) storing the LP gas. A coupling type second filling connection (11) detachably connected to the coupling container valve (21) attached to the fiber reinforced plastic FRP container (20) is connected to the other end of 2), A measuring device (31) for measuring the LP gas filling amount located in the lower part of the container (20) and a solenoid valve (13) provided in the second filling connection part (11) are electrically connected. The 3rd LP gas simple filling device characterized by. The second filling connection portion (11) includes a female joint (12) detachably connected to the coupling container valve (21) of the FRP container (20), and a solenoid valve (13), and the solenoid valve (13) is an electric signal from a measuring device (31) which measures the filling amount of LP gas located at the lower part of the FRP container (20) when the FRP container (20) is filled with a predetermined amount of LP gas The third LP gas simplified filling device according to claim 5, characterized in that the valve is closed so that the FRP container (20) can be filled with a fixed amount of LP gas, and overfilling of the LP gas is prevented.

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