JP6571151B2 - LP gas simple filling device - Google Patents

Description

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

Conventionally, metal household cylinders or business cylinders (metal containers) filled with LP gas are used in depopulated areas, mountainous areas, island areas, or various event venues where city gas is not widespread. It is widely used as a cooking fuel.

Normally, LP gas is filled into small cylinders and sold to homes or businesses by gas distributors at filling stations with large gas tanks. When filling this cylinder with LP gas, the connection part is screwed into the valve valve of the cylinder via a filling hose connected to the large gas tank, and the pump linked to the gas tank is driven to forcibly fill the LP gas. It was.

Further, when LP gas is filled into a gas cylinder of an automobile using LP gas as a fuel, a gas for pressurization is injected into the storage tank and pressurized, and then the cylinder is filled (for example, patent document). 1 and 2).

JP 2002-181290 A JP 2004-69029 A

Each of the above-described inventions requires an LP gas storage tank and a pressurized gas tank, which is inconvenient because the equipment is large. On the other hand, in recent years, instead of a metal gas cylinder that is heavy and inconvenient to handle, a lightweight and durable synthetic resin small cylinder (hereinafter referred to as an FRP container) has become widespread. This FRP container is made of fiber reinforced plastic material, and is about half the weight of a metal container, light in weight, twice the pressure resistance of a metal container, strong in corrosion resistance, It is a safe and strong container that will not explode.

At present, this FRP container is widely used in small containers with a capacity of less than 10 kg. Its use is light and durable, and it is convenient to carry. It can be used as a gas fan heater and gas clothes dryer in a room without a gas stopper in a house, and also as a fuel for camping outdoors, and it is also widely used as a fuel for parasol heaters for outdoor heating. .

Since this FRP container is also an LP gas container, if the LP gas runs out, it must be filled with LP gas. However, the FRP container filling station is not everywhere like a city gas station, and can only be filled by going to a filling station where a large LP gas tank is installed. Further, the FRP container is different from a metal cylinder, and uses a coupling container valve in order to enhance safety in connection with various instruments. Therefore, it cannot be connected with a screw-type connector attached to a gas filling hose like a valve valve attached to a normal LP gas container.

In recent years, so-called bulk storage tanks with a large storage capacity have become widespread in place of LP gas gas cylinders for businesses or general households. However, since FRP containers are not yet widespread, it is not possible to make coupling connections for filling FRP containers to existing bulk storage tank filling hoses. Therefore, in order to fill the FRP container with LP gas, it was not possible to fill it without going to a filling station with a large storage tank.

Therefore, it is easy to fill LP gas from an existing bulk storage tank into LP gas and use it as an emergency fuel in the event of a disaster, or by handling the FRP container at a gas store easily. An object is to promote the spread of containers.

According to the first aspect of the present invention, a connection adapter 6 detachably connected to the liquid take-off 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. A coupling type first filling connecting portion 8 detachably connected to a coupling container valve 21 provided in an FRP container 20 made of fiber reinforced plastic is attached to the end. The first filling connecting portion 8 includes a female joint 9 that is detachably connected to the coupling container valve 21 of the FRP container 20, and a stop valve 10 that shuts off the LP gas flow path. To do.

Accordingly, the first LP gas simple filling device 1A connects the tip of the connection adapter 6 connected to one end of the filling hose 2 to the liquid take-off valve 26 of the bulk storage tank 25 and connects the first filling connecting portion 8 connected to the other end to the FRP. It can be simply connected to the coupling container valve 21 of the container 20. Furthermore, when filling the LP gas, it is possible to fill it with a flow difference between the pressure in the bulk storage tank 25 and the pressure in the FRP container 20 (0.3 MPa or more) without using a liquid feed pump or a pressurized gas. it can. Therefore, LP gas can be easily filled in accordance with the High Pressure Gas Safety Law. On the other hand, the FRP container 20 is light and strong, so it is convenient to carry, and since it is made of synthetic resin, it has excellent color variation and fashionability, so it does not feel uncomfortable even if it is installed indoors. Furthermore, the use of large tanks to fill the FRP container with gas has expanded because of its widespread use such as indoor air conditioners and heating appliances in rooms without gas outlets. This is convenient because the FRP container 20 can be easily filled from the bulk storage tank 25 using the first LP gas simple filling apparatus 1A according to the present application without going to a certain filling station. Furthermore, even in the event of an emergency disaster when the lifeline has been interrupted, the bulk storage tank 25 has an earthquake-resistant structure, and therefore, by using the first LP gas simple filling device 1A of the present application, it is easy to use. Since the FRP container 20 can be filled with LP gas, fuel can be secured in an emergency such as a disaster, which is convenient.

According to a third aspect of the present invention, a connection adapter 6 detachably connected to the liquid take-off 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 coupling container valve 21 provided in a fiber reinforced plastic FRP container 20, a female joint 9 detachably connected, and a stop valve 10 blocking the LP gas flow path is provided. The first flow path 4 connected to the FRP container 20 is connected to one of the branch pipes 15 attached to an arbitrary portion of the middle portion of the filling hose 2 and the second flow connected to the popular metal container 28 on the other side. The path 5 is connected, and the second flow path is formed by attaching a connecting valve 17 for removably attaching to the valve valve 29 of the popular metal container 28 at the tip via the stop valve 16. Further, the FRP container 20 is characterized in that a measuring instrument 30 for measuring the filling amount of LP gas is attached to the lower part thereof.

Therefore, the second LP gas simple filling device 1B connects the tip of the connection adapter 6 connected to one end of the filling hose 2 to the liquid take-off valve 26 of the bulk storage tank 25 and connects the first filling connecting portion 8 connected to the other end to the FRP. The coupling container valve 21 of the container 20 can be easily connected manually without using an instrument. Furthermore, when filling LP gas, it can be filled by flowing at a pressure difference (0.3 MPa or more) in the bulk storage tank 25 and in the FRP container 20, so that it is simple in accordance with the High Pressure Gas Safety Law. The LP gas can be filled. Furthermore, by measuring the filling amount with the measuring instrument 30 attached to the FRP container 20, overfilling and insufficient filling can be prevented. In addition, the second filling device 1B connects the empty cylinder 28 to the second flow path 5 so that if the FRP container 20 is overfilled or insufficiently filled, excess LP gas is removed from the empty cylinder 28. Moreover, 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, a connection adapter 6 detachably connected to the liquid take-off 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. A coupling-type second filling connecting portion 11 detachably connected to a coupling container valve 21 attached to the FRP container 20 made of fiber reinforced plastic is connected to the other end, and the LP located on the outer bottom surface of the FRP container 20 The measuring device 31 for measuring the gas filling amount is electrically connected to the electromagnetic valve 13 provided in the second filling connecting portion 11. The second filling connecting portion 11 includes a female joint 12 detachably connected to the coupling container valve 21 of the FRP container 20 and an electromagnetic valve 13. The electromagnetic valve 13 is located in the FRP container 20. When a certain amount of LP gas is filled, the valve is closed by an electrical signal from a measuring instrument 31 that measures the amount of LP gas located at the lower part of the FRP container 20 to fill the FRP container 20 with a certain amount of LP gas. It is possible to prevent overfilling of LP gas.

Accordingly, in the third LP gas simple filling device 1C, the connection adapter 6 is attached to one end of the LP gas filling hose 2, and the second filling connecting portion 11 connected to the coupling container valve 21 of the FRP container 20 is connected to the other end. Since it has a simple configuration, it is an economical device. In addition, when LP gas is filled from the bulk storage tank 25 into the FRP container 20, the connection adapter 6 is connected to the liquid take-off valve 26 of the bulk storage tank 25, and the other end of the female joint 12 of the second filling connecting portion 11 is connected to the FRP container. When each valve is opened by connecting to 20 coupling container valves 21, it flows from the bulk storage tank 25 side having a high LP gas pressure to the FRP container 20 side having a low internal pressure with a LP gas pressure difference (0.3 MPa or more). Thus, the LP gas can be easily filled in the FRP container 20. Furthermore, since the coupling container valve 21 of the FRP container 20 and the female joint 12 of the second filling connecting part 11 can be simply and reliably connected with a coupling type one-touch, there is no risk of gas leakage and safety. 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 electromagnetic valve 13 attached to the second filling connecting portion 11, the valve is securely closed, and the LP gas 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 work procedure of the 2nd LP gas simple filling apparatus which shows the 2nd Embodiment of this invention is shown.

DESCRIPTION OF EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of a first LP gas simple filling apparatus showing a first embodiment. As shown in FIG. 1, the first LP gas simple filling device 1A is detachably attachable to a high pressure gas filling hose 2 for filling LP gas and a liquid take-off valve 26 of a bulk storage tank 25 storing liquefied petroleum gas. The connecting adapter 6 to be attached and the first filling connecting portion 8 for coupling connected to the coupling container valve 21 of the FRP container 20 are connected to the coupling container valve 21 of the FRP container 20. And a female joint 9 that is detachably connected and a stop valve 10 that shuts off the filling hose 2 that is an LP gas flow path so as to be openable and closable.

The bulk storage tank 25 is a tank that stores liquefied petroleum gas (hereinafter referred to as LP gas), and has a capacity of less than 3 tons installed or buried in each household or business establishment. LP gas storage has safety and safety standards defined by the Liquefied Petroleum Gas Act, so there are severe restrictions when filling with LP or gas pressure.

However, when filling using the pressure difference of LP gas without using the pump or gas pressure, there is a safety standard for safety, but the LP gas is discharged using the pressure difference in the container. It is allowed to be transferred. On the other hand, a metal gas cylinder installed in each home or office is conventionally used as the LP gas container, and various LP gas cylinders having different capacities depending on applications, for example, 10 kg, 20 kg, and 50 kg cylinders are used. However, recently, a light and durable LP gas container made of synthetic resin is known due to technological progress.

In particular, this synthetic resin LP gas container (hereinafter referred to as FRP container) has a double structure of a pressure container and a protective cover formed of a fiber reinforced plastic material, and its weight is about half that of a metal container. The high-pressure resistance is twice that of a metal container and is made of a plastic material, so it is highly corrosion-resistant and can be used safely in coastal areas. Furthermore, the pressure vessel made of glass fiber material does not melt with heat even in a fire, has safety and strength that does not explode, and can be colored, so it is aesthetically pleasing and can be used indoors without a sense of discomfort. can do. Furthermore, since the container is translucent, the remaining amount of gas can be visually observed from the outside, so there are many advantages such as prevention of gas exhaustion, and it is convenient and convenient. It is desired to spread widely.

Therefore, according to the present invention, the FRP container can be easily filled from the bulk storage tank, and can be filled from the bulk storage tank already installed in each home or office in the event of an emergency such as a disaster. A device is provided.

The first LP gas simple filling device (hereinafter referred to as the first filling device) 1A will be described. The connection adapter 6 attached to one end of the filling hose 2 is formed in a screwed manner, and is connected to the liquid take-off valve 26 of the bulk storage tank 25. It connects by screwing with the internal thread part provided in the opening | mouth. The screwing can be easily fastened to the connection port of the liquid extraction valve 26 by manually turning the handle portion of the connection adapter 6.

The first filling connecting portion 8 attached to the other end of the filling hose 2 includes a female joint 9 detachably connected to the coupling container valve 21 of the FRP container 20, and a filling hose 2 forming a LP gas flow path. Since the coupling container valve 21 of the FRP container 20 is formed as a male coupling, it can be detachably connected to the female joint 9 with a single touch. . Therefore, the connection of the first filling device 1A can be easily performed manually without using an instrument.

The operation of the first filling device 1A will be described. The connection adapter 6 attached to one end of the filling hose 2 is connected to the liquid take-out valve 26 of the bulk storage tank 25, and the female joint 9 of the filling connection portion 8 attached to the other end. 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 discharge valve 26 of the bulk storage tank 25 is opened, the pressure difference (from the bulk storage tank 25 having a high gas pressure to the FRP container 20 having a low gas pressure) The FRP container 20 can be filled by flowing LP gas using 0.3 MPa or more.

For example, when LP gas is generated by vaporizing the liquid phase in the bulk storage tank 25, the pressure in the bulk storage tank 25 rises, and the LP gas is supplied from the open liquid take-off valve 26 via the filling hose 2. Since it can be made to flow in the low FRP container 20 by a pressure difference (0.3 MPa or more), LP gas can be supplied simply and easily. When the FRP container 20 is filled with a predetermined amount of LP gas, the pressure difference between the pressure in the bulk storage tank 25 and the FRP container 20 disappears, the LP gas transfer stops, and the stop valve 10 of the first filling connection portion 8 The liquid can be filled by closing the liquid take-off valve 26 of the bulk storage tank 25.

A second LP gas simple filling device (hereinafter referred to as a second filling device) 1B showing the second embodiment is provided at one end of a filling hose 2 for high pressure gas for filling LP gas as shown in FIG. The connection adapter 6 connected to the liquid take-off valve 26 of the bulk storage tank 25 is attached, and the first filling connecting portion 8 connected to the FRP container 20 is connected to the other end, and the branch pipe 15 is connected to an arbitrary intermediate position of the filling hose 2. There are provided a first flow path 4 that interposes and feeds the liquid to the FRP container 20 side, and a second flow path 5 that is connected to a popular metal container 28 (hereinafter referred to as an empty cylinder).

The pressure in the flow path is measured so that LP gas can be smoothly transferred through the flow path between the bulk storage tank 25 and the FRP container 20 or between the FRP container 20 and the empty cylinder 28. A pressure gauge 35 is branched from the first flow path 4 above the first filling connection portion 8 and attached.

The pressure in the bulk storage tank 25 by the pressure gauge 35 can be measured by closing the valves of the FRP container 20 and the empty cylinder 28 and opening the liquid take-off valve 26 of the bulk storage tank 25. . Further, when the valve of the empty cylinder 28 is opened while the liquid take-off 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, the pressure in the FRP container can be measured by closing the valve 28 of the empty cylinder 28 with the liquid take-off valve 26 of the bulk storage tank 25 closed and opening the coupling container valve 21 of the FRP container 20.

The branch pipe 15 is connected to one end of the filling hose 2 connected to one end of the connection adapter 6 connected to the liquid take-off valve 26 of the bulk storage tank 25, and is connected to the tip of the first flow path 4 provided on one side of the FRP. A first filling connecting portion 8 connected to the container 20 is attached, and a filling connecting valve 17 connected to the valve valve 29 of the empty cylinder 28 is connected to the second flow path 5 provided on the other branched side via a stop valve 16. It is connected.

The connection adapter 6 is formed by screwing a connection portion, and is connected by being screwed with a female screw portion provided at a connection port of the liquid take-off valve 26 of the bulk storage tank 25. The screwing can be easily fastened to the connection port of the liquid extraction valve 26 by manually turning the handle portion of the connection adapter 6. Moreover, since the 1st filling connection part 8 has attached the female coupling 9 connected with the coupling container valve 21 of the FRP container 20 so that attachment or detachment is possible, it can connect so that attachment or detachment is possible by one-touch.

The first filling connecting part 8, the bulk storage tank 25 and the FRP container 20 used in the second filling apparatus 1B are the same as the first filling connecting part 8, the bulk storage tank 25 and the FRP container 20 used in the second filling apparatus 1A. Therefore, the description will be omitted because it is redundant.

The FRP container 20 has a measuring device 30 for measuring the filling amount of the LP gas located on the lower surface of the FRP container 20 so that the filling amount of the LP gas can be visually observed. Judgment can be made. Also, in the unlikely event that overfilling or underfilling occurs, it can be determined immediately, so that measures can be taken immediately. The measuring instrument 30 is not a special measuring instrument but may be a well-known weighing scale or a liquid level gauge for measuring a liquid phase.

The operation of the second filling device 1B will be described. The connection adapter 6 attached to one end of the filling hose 2 is connected to the liquid discharge valve 26 of the bulk storage tank 25 and the first filling attached to the tip of the first flow path 4. The female joint 9 of the connecting portion 8 is connected to the coupling container valve 21 of the FRP container 20, and the connecting valve 17 for filling connected to the branched second flow path 5 and the valve valve 29 of the empty cylinder 28 are connected to each other. It is.

When the LP gas is filled into the FRP container 20 from the bulk storage tank 25 using the second filling device 1B, as shown in the flowchart of FIG. 4, the procedure (1) includes the bulk storage tank 25, the FRP container 20, the empty cylinder 28, Are connected to each other via a branch pipe 15. In step (2), the amount of LP gas filled in the FRP container 20 is set. (The weight of the empty FRP container and the weight of the first filling connecting portion 8 are measured in advance to determine the plus filling amount.) Steps (3) and (4) The pressure in the filling hose 2 is measured (the pressure gauge 35 is branched from the first flow path 4 above the first filling connection portion 8), and the pressure between the bulk storage tank 25 and the FRP container 20 is measured. Confirm that the difference is 0.3 MPa or more. In the step (5), after the stop valve 16 of the second flow path 5 is closed, the liquid take-off valve 26 of the bulk storage tank 25 and the stop valve 10 of the FRP container 20 are opened, whereby the bulk storage tank 25 and the FRP container 20 The FRP container 20 is filled with LP gas with a pressure difference of. In the step (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 connecting part 8 is closed and the liquid take-off valve of the bulk storage tank 25 is closed. 26 is closed to complete the filling.

The filling of the LP gas into the FRP container 20 is that the FRP container 20 is placed on the measuring instrument 30 and that the liquid phase filled in the container can be seen from the outside. May happen. When the LP gas is overfilled, the LP gas cannot be returned to the original bulk storage tank 25. For this reason, it is not only a violation of the law but also dangerous to dispose of the overfilled LP gas as it is. Therefore, the second filling device 1B can collect the LP gas overfilled in the FRP container 20 in the empty cylinder 28 connected to the second flow path 5 with the overfilled LP gas.

The recovery of the LP gas overfilled in the FRP container 20 is performed by closing the liquid extraction valve 26 of the bulk storage tank 25 and opening the stop valve 16 of the second flow path 5 as shown in the procedure 10 of the flowchart. LP gas can be transferred by a pressure difference from the empty cylinder 28. The overfilled LP gas is measured by the measuring instrument 30 on which the FRP container 20 is mounted, and the stop valve 10 and the stop valve 16 are closed when a fixed amount of gas remains, thereby recovering the overfill amount. can do.

When the pressure difference is small and cannot be transferred, the FRP container 20 is heated to expand and pressurize the LP gas in the FRP container, thereby creating a pressure difference and filling the empty cylinder 28 with the LP gas. be able to. Therefore, the overfilled LP gas is not wasted and is very economical.

Furthermore, since the LP gas is filled with the pressure difference from the bulk storage tank 25 side to the FRP container 20 side, if there is no pressure difference during filling due to a change in the outside air temperature, the LP gas does not flow during the 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 take-off valve 26 of the bulk storage tank 25 is closed, and the stop valve 16 of the second flow path 5, the connecting 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 lowered by transferring the pressure in the FRP container 20 to the empty cylinder 28 and extracting it, and the bulk storage tank 25 and the FRP container 20. After that, the stop valve 16 of the second flow path 5 or the connection valve 17 for filling is closed, the liquid take-off valve 26 of the bulk storage tank 25 is opened, and the FRP container 20 is connected to the FRP container 20. The filling can be resumed and a predetermined amount of LP gas can be filled.

As shown in the second filling device 1B, the filling hose 2 is provided with the second flow path 5 via the branch pipe 15, and an empty cylinder 28 is connected to the second flow path 5 so that the overflow to the FRP container 20 is achieved. 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. Needless to say, the first flow path 4 can be closed to fill the empty cylinder 28 of the second flow path 5 directly from the bulk storage tank 25 with LP gas.

As shown in FIG. 3, the third LP gas simple filling device (hereinafter referred to as the third filling device) 1C is attachable to and detachable from the liquid take-off valve 26 of the bulk storage tank 25 storing liquefied petroleum gas at one end of the LP gas filling hose 2. The connection adapter 6 is connected to the other end of the filling hose 2 and the second filling connecting portion 11 having a coupling function to be detachably connected to the coupling container valve 21 of the FRP container 20 is connected to the other end of the filling hose 2. It is.

The second filling connecting portion 11 includes an electromagnetic valve 13 electrically connected to a measuring instrument 31 located on the outer bottom surface of the FRP container 20 in order to measure the filling amount of the FRP container 20, and a coupling of the FRP container 20 It is comprised by the container valve 21 and the female coupling 12 connected so that attachment or detachment is possible. Since 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, the description thereof is omitted because it is redundantly described. .

When the FRP container 20 is filled with a predetermined amount of LP gas, the measuring instrument 31 sends a signal to the electromagnetic valve 13 to automatically close the valve and shut off the inflow of the LP gas to stop the predetermined amount of LP gas. Can be filled. The measuring device 31 attached to the FRP container 20 measures the weight, but when the liquid level filled in the container is measured and a certain filling amount is measured, the signal is sent to the electromagnetic valve 13 and automatically. It may be a measuring instrument comprising a known liquid level gauge that closes the valve. Moreover, since the coupling container valve 21 of the FRP container 20 and the female joint 12 of the second filling connecting part 11 can be easily and reliably connected to each other by one touch, they should be used safely without fear of gas leakage. Can do.

The LP gas is charged by connecting the connection adapter 6 to the liquid take-off valve 26 of the bulk storage tank 25, connecting the female joint 12 of the second filling connecting part 11 to the coupling container valve 21 of the FRP container 20, By opening the electromagnetic valve 13 of the filling connecting portion 11 and opening the liquid take-off valve 26 of the bulk storage tank 25, the LP gas is pressurized from the bulk storage tank 25 side having a high pressure to the FRP container 20 side having a low internal pressure. When the FRP container 20 flows due to the difference (0.3 MPa or more) and is filled with LP gas, and a predetermined amount of LP gas is filled into 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 a signal to the electromagnetic valve 13 provided in the filling connecting portion 11, and operates the electromagnetic valve to shut off the flow path, thereby supplying a certain amount of LP gas to the FRP container 20. 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 transmits a signal to the electromagnetic valve 13 attached to the second filling connecting portion 11 to automatically shut off the electromagnetic valve 13. Therefore, 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 devices, the filling is performed by the differential pressure between the pressure in the bulk storage tank 25 and the pressure in the FRP container 20. However, since the temperature difference changes greatly in the season such as summer or winter, a predetermined pressure difference may not occur due to a change in the outside air temperature. Therefore, in addition to the measures described above, a heating device 33 is attached to the bulk storage tank 25 in order to efficiently transfer LP gas, or a cooling device (not shown) is attached to the FRP container 20 so that the inside of the bulk storage tank 25 It goes without saying that the LP gas can be smoothly fed by generating a differential pressure by raising the temperature of the stored liquid or lowering the temperature of the FRP container 20.

Further, the heating device 33 heats or cools the bulk storage tank to a predetermined temperature (about 40 ° C.) to pressurize the liquid phase. When the temperature rises above a set temperature or falls below a certain temperature, the switch is turned on. Alternatively, a thermostat (not shown) that is turned off may be attached so that the set temperature can be maintained.

DESCRIPTION OF SYMBOLS 1A 1st LP gas simple filling apparatus 1B 2nd LP gas simple filling apparatus 1C 3LP gas simple filling apparatus 2 Filling hose 4 1st flow path 5 2nd flow path 6 Connection adapter 8 1st filling connection part 9 Female joint 10 Stop valve 11 Second filling connecting part 12 Female joint 13 Solenoid valve 15 Branch pipe 16 Stop valve 17 Filling connecting valve 20 FRP container 21 Coupling container valve 25 Bulk storage tank 26 Liquid take-off valve 28 Popular metal container 29 Valve valve 30 Measuring instrument 31 Measurement 33 heating device
35 pressure gauge

Claims (1)

A connection adapter (6) removably connected to a liquid take-off valve (26) of a bulk storage tank (25) storing LP gas having a pressure of 0.3 MPa or more at one end of a filling hose (2) for supplying LP gas A first flow path (4) connected to an empty FRP container (20) made of fiber reinforced plastic is connected to one of the branch pipes (15) attached to an arbitrary portion of the intermediate portion of the filling hose (2). On the other hand, a second flow path (5) connected to the popular empty metal container (28) is connected , and the first flow path (4), the second flow is connected to the first flow path (4). A pressure gauge (35) for measuring the internal pressure in the passage (5) and the filling hose (2), and a female joint (9) detachably connected to a coupling container valve (21) provided in the FRP container (20) And a first filling connecting portion comprising a stop valve (10) for blocking the LP gas flow path Mounting (8), wherein the second flow path (5), connecting detachably attached filling the valve valve empty metal container pervasive to the tip via a stop valve (16) (28) (29) Rutotomoni mounting the valve (17), wherein the bottom of the FRP vessel (20), LP gas simplified filling apparatus characterized by comprising attached measuring device for measuring the filling amount of LP gas (30).

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