JPH0626343Y2 - Liquefied gas supply device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a liquefied gas supply device, particularly for industrial and commercial use which consumes a large amount of liquefied gas (for example, liquefied petroleum gas, hereinafter referred to as LP gas). The present invention relates to a liquefied gas supply device suitable for gas supply equipment.

[Conventional technology]

2. Description of the Related Art Conventionally, there is known a gas supply facility in which a plurality of gas containers are centrally arranged in a storage and a large amount of LP gas from the gas containers is supplied to a gas device side.

FIG. 6 shows a conventional gas supply facility of this type.
In the outdoor storage 1, two groups of gas container groups 2 and 2 are stored, and one gas container selected by the gas liquid switching device 3 provided between the gas container groups 2 and 2. The LP gas liquid from the group 2 is guided to the outside of the storage 1 by the high pressure pipe 4,
It is configured to be fed to the evaporator 6 in the machine room 5 adjacent to the storage case 1. Then, the LP gas liquid is vaporized in the evaporator 6, and the vaporized LP gas is drained by the drain separator 7 and then guided to the two-stage secondary regulator 9 through the intermediate pressure pipe 8. Further, the pressure is further reduced, and the gas is supplied to the gas equipment side through a low pressure pipe 11 equipped with a meter 10 and the like.

The evaporator 6 used in such a gas supply facility is constructed as a floor-mounted type as shown in FIG. 7, and more specifically, as shown in FIG. An inlet pipe 12 connected to the high-pressure pipe 4 is provided, an adjusting unit (not shown) for adjusting the flow rate of the LP gas liquid flowing into the evaporator from the inlet pipe 12, and the LP gas having the flow rate adjusted. Electric heater (not shown) that vaporizes liquid
And a heat exchange fin 14 for heat exchange are provided side by side, and the heat exchange part 14 is provided on the front side thereof.
The outlet pipe 15, the intermediate pressure regulator 16, the electric box 1 in which the LP gas vaporized in step 1 flows toward the drain separator 7
7, the terminal box 18, etc. are provided. Then, the LP gas liquid flowing into the evaporator 6 from the inlet pipe 12 flows in the width direction of the evaporator and reaches the heat exchange section 14,
The LP gas vaporized here flows in the depth direction of the evaporator and flows out of the evaporator 6 through the outlet pipe 15.

[Problems to be solved by the device]

However, in the above conventional gas supply equipment, the evaporator 6
Since the adjusting portion (not shown) and the heat exchanging portion 14 are provided side by side on the rear surface side, the inlet pipe 12 is provided, and various devices such as the outlet pipe 15 are provided on the front surface side,
The external dimensions of the evaporator 6 itself become large both in the width direction and the depth direction, so that the evaporator 6 is installed in the gas container group 2 as described above.
However, the dedicated machine room 5 for storing the evaporator 6 has to be installed adjacent to the storage case 1 as described above.

Therefore, there is a problem that a space for the machine room 5 is required, and it is not possible to reduce the size of the gas supply equipment as a whole, and the storage 1 and the machine room 5 are separately formed. Therefore, the high-pressure pipe 4 that connects the gas container group 2 and the evaporator 6 becomes long, and work such as equipment installation work and piping work around the equipment by a specialist is required, resulting in the entire gas supply facility. However, there is a problem that the construction cost increases and the construction period becomes longer.

The present invention has been made in view of the above points, and is a liquefied gas supply capable of achieving a reduction in the size of a gas supply facility that consumes a large amount of LP gas, a reduction in the construction cost, and a shortened construction period. The purpose is to provide a device.

[Means for Solving the Problems]

In order to achieve the above object, a liquefied gas supply device according to the present invention is selected by a gas liquid switching device connected to a group of liquefied gas containers of a plurality of systems arranged in a storage, and this gas liquid switching device. The flow rate of the gas liquid from one liquefied gas container group is adjusted by the adjustment unit and guided to the heat exchange unit.The heat exchange unit is provided with an evaporator that vaporizes the gas liquid, and the gas vaporized by the evaporator is used. In the liquefied gas supply device that supplies gas to the gas equipment side through a drain separator, a vertically long and slender frame is provided which is arranged in the storage and is arranged between the liquefied gas container groups of the plurality of systems. At the upper end portion, at the same height as the high-pressure header pipe that connects each of the liquefied gas container groups, the gas liquid switching device connected via the connecting portion is arranged, and the frame below the gas liquid switching device. Center of Min, is connected via a connecting pipe,
Arranging the evaporator configured to line up the adjustment unit and the heat exchange unit in the vertical direction, the lower end portion of the frame below the evaporator, the drain separator connected through the outlet pipe is arranged, The gas liquid switching device, the evaporator, and the drain separator are integrally configured with the frame.

[Action]

According to the present invention, since each part of the liquefied gas supply device is arranged in the up-down direction of the frame in the elongated frame that can be arranged in the storage, and these parts are integrally configured with the frame, The frame in which each of the above parts is arranged is arranged between the liquefied gas container groups, and by simply connecting the high-pressure header pipe of the liquefied gas container group and the gas liquid switching device, the gas flow path from the gas container to the drain separator is formed. It can be formed with extremely few operations, and a dedicated machine room for accommodating an evaporator, which was required adjacent to a storage container for a gas container, can be omitted.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

1 to 4 show an embodiment of the present invention.
An evaporator 6 having a structure to be described later is attached to an intermediate position in the longitudinal direction of the frame 19 which is elongated in the vertical direction, and the upper end of the frame 19 above the evaporator 6 is
A gas liquid switching device 3 for selecting one of a plurality of gas container groups and feeding the LP gas liquid from the gas container group to the evaporator 6 side is attached, and further below the evaporator 6. At the lower end of a certain frame 19, L vaporized by the evaporator 6
A drain separator 7 for removing drain from P gas is attached. The gas liquid switching device 3 and the evaporator 6 are connected by the connecting pipe 20, and the evaporator 6 and the drain separator 7 are connected by the outlet pipe 21, whereby the liquefied gas supply as one unit is supplied. The device M is configured so that the LP gas liquid fed from the gas liquid switching device 3 flows toward the drain separator 7 while being vaporized by the evaporator 6 on the way, and further, as shown in FIG. After that, the gas is supplied to the gas equipment side.

As shown in FIGS. 3 and 4, the evaporator 6 has an L
Decompression adjusting unit 2 as an adjusting unit for adjusting the flow rate of the P gas liquid
2 and the heat exchange part 14 are arranged side by side in the vertical direction, the connection pipe 20 is connected to the rear surface side of the decompression adjustment part 22, and the outlet pipe 2 is connected to the rear surface side of the heat exchange part 14.
1 is connected.

Two decompression chambers 23 that communicate with the decompression adjustment unit 22.
a and 23b are formed, and one of the decompression chambers 23a is formed.
Is connected to the connecting pipe 20, and a nozzle portion 24 having an inlet nozzle 24a and an outlet nozzle 24b and a valve body 25 inside is formed in the connecting portion. Also,
The decompression chamber 23a is provided with a swing piece 26 that comes into contact with the valve rod of the valve body 25, and the other decompression chamber 23b.
A diaphragm 28 that is pressed downward in the figure by an adjusting spring 27 is provided on the. The diaphragm 28 is provided with an adjusting rod 29, the tip of which protrudes into the decompression chamber 23a and comes into contact with the swing piece 26.

The heat exchanging section 14 is provided with a plurality of stages of heat exchanging fins 13, and the heat exchanging fins 13 are heated by a cartridge heater 30 which is removable from the front side of the evaporator 6. Has been done.

Therefore, the decompression adjusting unit 22 of the evaporator 6 is connected to the connecting pipe 20.
The LP gas liquid flowing into is sprayed from the nozzle portion 24 to the upper portion of the heat exchange portion 14, where it is instantaneously evaporated and vaporized by the heat of the electric heater, and further superheated in the heat exchange portion 14. LP gas that is difficult to re-liquefy,
It flows out from the outlet pipe 21 to the drain separator 7. The gas pressure of the vaporized LP gas acts on the diaphragm 28, and when the gas pressure becomes larger than the biasing force of the adjusting spring 27, the diaphragm 28.
Is pushed upward, and by the movement of the diaphragm 28, the valve body 25 that interlocks with the diaphragm 28 via the adjusting rod 29 and the swinging piece 26 closes the outlet nozzle 24b of the nozzle portion 24, and the decompression adjusting portion. The inflow of the LP gas liquid to 22 is stopped. Further, when the LP gas is consumed and the gas pressure acting on the diaphragm 28 decreases, the diaphragm 28 is urged by the urging force of the adjusting spring 27.
Is pushed down, whereby the outlet nozzle 24b is opened and the LP gas liquid is sprayed again. In this way, the flow rate of the LP gas liquid is adjusted, and the depressurizing operation is performed in accordance with the consumption state of the LP gas. Further, with the above-described configuration, the external dimensions of the evaporator 6 are the width direction thereof. Also, the depth is reduced.

In addition to the cartridge heater 30, various electric operating parts 31 are centrally arranged on the front surface of the evaporator 6, so that the maintenance thereof can be easily performed.

Further, the gas liquid switching device 3 located above the evaporator 6 is arranged such that the height position thereof is at the same level as the high pressure header pipe 32 of the gas container group 2, as shown in FIG. ing. Therefore, it is advisable to install the liquefied gas supply device M as one unit having the above-described configuration in the space for one gas container between the two-system gas container groups 2 and 2 housed in the housing 1. For example, the gas container group 2,
The high-pressure header pipe 32 of No. 2 is directly connected to the gas liquid switching device 3 from both sides via the valve 33 and the strainer 34, and the one of the gas container groups 2 selected by the gas liquid switching device 3 is connected. The LP gas liquid is the high pressure header pipe 32, the gas liquid switching device 3 and the connecting pipe 20.
After that, it is fed to the evaporator 6 located immediately below the gas liquid switching device 3. The high-pressure header pipe 32 and the connecting pipe 20 correspond to the high-pressure pipe 4 connecting the conventional gas container group 2 and the evaporator 6,
It is possible to omit the above-mentioned high-pressure pipe 4, which is conventionally required.

Further, as described above, the main components such as the gas liquid switching device 3, the evaporator 6 and the drain separator 7 are centrally arranged in one elongated frame 19 to configure the liquefied gas supply device M as one unit. Therefore, as described above, the liquefied gas supply device M can be installed in a small space between the gas container groups 2 in the storage case 1 and is dedicated for storing the evaporator 6 which is conventionally required. The machine room 5 can be dispensed with, and the entire gas supply facility using the liquefied gas supply device M can be downsized. Further, as described above, the liquefied gas supply equipment M is installed between the gas container groups 2, the high pressure header pipe 32 is connected to the gas liquid switching device 3, and the drain separator 7 is connected to the gas equipment side. Installation and piping work is completed just by connecting the pressure pipes 8, which eliminates the need for specialized equipment installation work such as equipment installation and piping work around the equipment, which reduces the construction cost of gas supply equipment. It is possible to reduce and shorten the construction period.

Further, as shown in FIG. 1, the gas liquid switching device 3 is provided with a display lever 35 on the front surface thereof, and the display lever 35 is a switching shaft (not shown) of the gas liquid switching device 3. It swings between the right end position and the left end position in the figure in conjunction with, and the flow direction of the LP gas liquid at that time is displayed, and the use side and the consumption side of the above two gas container groups 2 and 2 are displayed. It is designed to be easily visible. Further, a micro switch 36 is provided at a portion that comes into contact with the tip end portion of the display lever 35 at the above-mentioned extreme position, and a predetermined switching signal from this switch is, as shown in FIG.
If it is displayed on the remote switching display plate 37 apart from the gas liquid switching device M, the flow direction of the LP gas liquid can be determined without approaching the storage 1 which is a dangerous area where fire or the like is strictly prohibited. be able to.

[Effect of device]

As described above, in the liquefied gas supply device according to the present invention, each part of the liquefied gas supply device is arranged in the vertical direction of the frame in the elongated frame that can be arranged in the storage, and these parts are integrated with the frame. Since it is configured, the frame in which the above respective parts are arranged is simply arranged between the liquefied gas container groups, and the high-pressure header pipe of the liquefied gas container group and the gas liquid switching device are simply connected to each other. It is possible to form the gas flow path from the drain separator to the drain separator with very few operations, and it is possible to omit the dedicated machine room for storing the evaporator, which was required adjacent to the storage container of the conventional gas container. In installing such gas supply equipment, it is possible to reduce the size of the equipment in space because it does not require a machine room, and the high pressure piping from the gas liquid switching device to the evaporator is unnecessary. Or the like by that the field piping can be omitted various work construction, etc., the reduction of construction costs, the effects of the like can be shortened construction period.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view of the above embodiment, FIG. 3 is a front view of an evaporator, FIG. 4 is a side sectional view of the evaporator, and FIG. FIG. 6 is a schematic configuration diagram of an LP gas supply facility using the above embodiment, FIG. 6 is a schematic configuration diagram of a conventional LP gas supply facility, and FIGS. 7A and 7B are conventional evaporator-dedicated machines. A front view and a side view showing the chamber, and FIG. 8 is a side view of the evaporator. 1 ... Storage, 2 ... Gas container group, 3 ... Gas liquid switching device, 4 ... High-pressure piping, 6 ... Evaporator, 7 ... Drain separator, 14 ... Heat exchange section, 19 ... Frame , 20 ...
… Connection pipe, 21 …… Outlet pipe, 22 …… Decompression adjusting part.

Claims (1)

[Scope of utility model registration request] 1. A gas liquid switching device connected to a plurality of liquefied gas container groups arranged in a storage, and a flow rate of gas liquid from one liquefied gas container group selected by the gas liquid switching device. Is provided with an evaporator that adjusts with an adjusting unit to the heat exchange unit, and vaporizes the gas liquid in the heat exchange unit, and the gas vaporized by the evaporator is supplied to the gas equipment side through the drain separator. In the gas supply device, an elongated frame is provided in the up and down direction, which is arranged in the storage and is arranged between the liquefied gas container groups of the plurality of systems,
At the upper end of this frame, at the same height as the high-pressure header pipe that connects the liquefied gas container groups, the gas liquid switching device connected via the connecting portion is arranged, and below the gas liquid switching device. In the center part of the frame of the above, an evaporator is arranged, which is connected through a connecting pipe, and is configured such that the adjusting part and the heat exchanging part are arranged in the vertical direction, and at the lower end part of the frame below the evaporator. A liquefied gas supply device, wherein the drain separator connected via an outlet pipe is arranged, and the gas liquid switching device, the evaporator and the drain separator are integrally formed with the frame.