KR0164020B1 - Apparatus for automatically enabling non-vacuum state and removing gas therein for liquid storing facility - Google Patents

Abstract

The present invention relates to a vacuum and gas automatic removal device of the liquid storage facility. In a liquid storage facility including a plumbing line having a vertical section in the related art, vibration and noise are generated without the smooth inflow and outflow of the liquid by vacuum and gas in the piping line when the liquid enters and leaves the storage cavity. There was a problem. Therefore, in the past, a plurality of manual opening and closing valves were installed in the middle of a pipe line, and several workers removed vacuum and gas by manually operating the manual opening and closing valves. Therefore, manpower and cost required for liquid inlet and outlet were increased. There was a problem. The present invention is connected to the shipping pump installed in the lower portion of the storage cavity is connected to the top of the inlet and outlet pipe having a vertical section extending to the ground is formed in the lower portion, the upper portion formed in the upper portion of the storage cavity A body having a gas discharge port connected to the gas discharge connection pipe to a gas discharge pipe extending to the ground; Vacuum and gas automatic removal means including a float valve for opening and closing the gas discharge connection pipe according to the liquid level inside the fuselage, the vacuum and gas of the piping line at the time of liquid inlet and outlet is automatically removed while vibration or noise This is to make the entry and exit smoothly without any occurrence, and to reduce the manpower and costs required for entry and exit.

Description

Automatic vacuum and gas removal device of liquid storage facility

The present invention is a vacuum and gas generated in the pipe line of the liquid storage equipment, such as the underground oil storage facility for storing and storing oil such as oil or petroleum gas in the underground cavity, the storage facility of petrochemical products or the water supply storage facility of a high-rise building, etc. Automatic removal of the vacuum and gas of the liquid storage facility to ensure the smooth transport of the liquid by automatically remove the vibration, to prevent vibration and noise, and to reduce the manpower and cost required for the liquid transfer .

In general, in a liquid storage system, when a liquid is introduced through a pipe line including the vertical pipe in a state in which the liquid in the vertical pipe falls due to the free fall due to the existence of the vertical pipe, the vacuum in the pipe line is increased. There was a problem that not only the entry and exit is not made smoothly, but also vibration and noise.

An example is an underground oil storage facility that stores oil in a storage cavity built underground. In such an underground oil storage facility, an underground oil storage facility is transported to an underground oil storage facility from an oil tanker, etc. It is to be transported from the oil storage facility to the transportation equipment and shipped.

Storage cavities are built underground adjacent to sea level, and the storage cavities are typically constructed at a lower position than sea level.

A connection passage is formed on the upper part of the storage cavity to the ground, and a gas discharge pipe connected to the upper end of the storage cavity is installed to the ground through the connection passage, and a gas opening and closing valve is installed at the upper end thereof.

On the other hand, a shipping pump is installed at the lower end of the cavity, and oil inlet and outlet pipes connected to the discharge end of the submersible pump are drawn through the connection passage, and the end thereof extends to the sea bottom.

Pipe end end manifolds are installed at the ends of the oil inlet and outlet pipes, and a plurality of connection hoses (two in the drawing) are connected to the end manifolds. At the top, it is connected to a buoy that floats on sea level, and in this buoy to a floating hose connected to the tanker's tank.

When the oil is pumped into the underground oil storage facility, the oil pump in the tanker side operates the oil in the oil tank to store the oil through the floating hose, buoy, connecting hose, inlet and outlet pipe end manifold and inlet and outlet pipe. When the oil is shipped, when the pump for shipping in the storage cavity is operated, the oil in the cavity is transferred to the tank tank through the inlet and outlet pipe, the end manifold, the connection hose, the buoy and the floating hose. will be.

In this loading and unloading process, the positions of the storage cavity and the tanker have a difference in height, and therefore, due to the high position head difference of more than 100m, the piping lines such as the inlet and the outlet pipe, the end manifold, the connection hose, the buoy and the floating hose are inside. In the vacuum state, a strong suction force is generated, and when the oil in the piping line stays stopped for a long time at the time of shipment, when the ship is restarted, the oil itself evaporates due to the temperature difference with the outside. This will not only prevent the transfer of oil, such as to hinder the transfer of oil, but also causes severe vibration and noise during the transfer of oil.

Therefore, conventionally, a plurality of manual control valves are installed in the middle of the inlet and outlet pipes so that several operators can open and close each manual control valve step by step to discharge vacuum and evaporated gas or to inject air. In addition to the smooth operation is to eliminate the vibration and noise.

However, conventionally, the opening and closing of the manual control valve installed in the middle of the inlet and outlet pipes is established in a large area of the inlet and outlet pipes, and the position of the vacuum or the evaporation gas inside is changed frequently. Opening and closing the valve at the right time at the right time is very difficult and it is insufficient to achieve smooth transportation of the oil.

In addition, when the vibration is severely generated, there is a fear that the equipment such as the connection portion of the piping line is damaged.

In addition, since several operators have to open and close the manual operation valve alternately, there is a problem in that manpower and cost required for oil inlet and outlet are increased.

Therefore, an object of the present invention is to automatically remove the vacuum and evaporated gas generated in the pipe line by the vacuum and gas of the liquid storage facility to efficiently perform the inlet and outlet of the oil without generating vibration or noise It is to provide an automatic removal device.

Another object of the present invention is to provide a vacuum and gas automatic removal device of a liquid storage facility to reduce the manpower and costs required for loading and unloading operations.

1 is a front view of an oil storage facility to which the automatic vacuum and gas removal device of the present invention is applied.

Figure 2 is an enlarged front view of the automatic vacuum and gas removal apparatus according to the present invention.

3 is a longitudinal side view of FIG. 2;

* Explanation of symbols for the main parts of the drawings

10: joint 11: connecting passage

20: gas discharge pipe 30: pump for shipment

31: Inlet and outlet pipe 40: Inlet and outlet pipe end manifold

50: oil tanker 51: floating hose

60: automatic vacuum and gas removal means 61: body

62: oil inlet 63: gas outlet

64: oil inlet connector 65: gas discharge connector

65a: upper connector 65b: branch pipe

65c: Lower connector 65d: External connector

66a, 66b: gathered pipe 67: pressure gauge

70 float valve 71 valve body

72: float arm 73: float

In order to achieve the object of the present invention, a liquid inlet connected to the top of the inlet and outlet pipe having a vertical section extending to the ground connected to the shipping pump installed in the lower part of the storage cavity is formed at the lower end, stored in the upper end A fuselage having a gas discharge port formed at an upper portion of the cavity and connected to a gas discharge connection pipe to a gas discharge pipe extending to the ground; It is provided with a vacuum and gas automatic removal device of the liquid storage device, characterized in that it comprises a vacuum and automatic gas removal means including a float valve for opening and closing the gas discharge connection pipe in accordance with the liquid level in the body.

The gas discharge connection pipe is connected to the upper gas outlet of the body and the upper connection pipe is located in the lower end through the fuselage, and a plurality of branch pipes connected to the lower end of the upper connection pipe in the fuselage; The lower connection pipe is connected to the lower end of the branch pipe and drawn out through the lower side of the fuselage, and the outer connection pipe connects the outer end of the lower connection pipe and the upper end of the gas discharge pipe.

The float valve is composed of a valve body provided in the middle of the branch pipe, a float arm supported by the valve body so as to be rotatable up and down, and a float fixed to the tip of the float arm.

Hereinafter, the vacuum and gas automatic removal device of the liquid storage facility according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

The present invention is characterized in that the vacuum and gas automatic removal means is installed on the top of the pipe line including a vertical section, hereinafter, the underground oil storage facility to which the automatic vacuum and gas removal apparatus according to the present invention is applied An example will be described.

1 is a front view showing an underground oil storage facility as an example of a liquid storage facility to which a vacuum and gas apparatus is applied according to the present invention, wherein 10 is a storage cavity built underground at a position adjacent to the sea surface, and this storage cavity 10 In the upper portion of the connecting passage 11 is formed to extend to the ground.

The upper end of the storage cavity 10 is connected to the gas discharge pipe 20 is installed extending to the ground and the gas opening and closing valve 21 is installed on the upper end. The gas discharge pipe 20 and the gas discharge valve 21 are for incineration treatment by discharging the gas generated in the cavity 10 when the overpressure occurs in the cavity.

In addition, a shipping pump 30 is installed at the lower end of the storage cavity 10 and an oil inlet / outlet pipe 31 connected to the discharge end of the submersible pump 30 is drawn out through the connection passage 11. The tip extends to the bottom of the sea.

Inlet and outlet pipe line end manifolds 40 are provided at the ends of the oil inlet and outlet pipe 31, and a plurality (two in the drawing) of the end manifolds 40 are connected. A hose 41 is connected, and an upper end of the connection hose 41 is connected to a buoy 42 floating on the sea surface and connected to an oil tank (not shown) of the oil tanker 50 in this buoy. It is connected to the floating hose 51.

At the top of the inlet and outlet pipes 31, vacuum and gas automatic removal means 60 for automatically removing the vacuum and evaporated gas generated in the piping line is installed.

2 and 3, the vacuum and gas automatic removal means 60 has an oil inlet 62 at the bottom and a gas outlet 63 at the top, and the oil inlet 62. ) And an oil inflow connecting pipe 64 for connecting the inlet and outlet pipes 31, a gas discharge connecting pipe 65 for connecting the gas outlet 63 to the gas discharge pipe 20, and a moving body ( It is configured as a float valve (70) is installed while lifting in the 61 to open and close the gas discharge connection pipe (65).

A buffer plate 62a is installed at an upper end of the oil inlet 62 to mitigate a sudden shock when the oil is introduced.

The gas discharge connection pipe 65 extends from the gas discharge port 63 so that its lower end penetrates into the fuselage 61 and a plurality of branches branched from the lower end of the upper connection pipe 65a. (3 in the drawing) branch pipes 65b, lower connection pipes 65c connected to the lower end of the branch pipes 65b and penetrating through the body 61 to the outside, and the lower connection pipes 65c. ) And an external connection pipe (65d) connecting between the gas discharge pipe (20).

Gathering pipes 66a and 66b are installed at the lower end of the upper connection pipe 65a to which the branch pipe 65b is connected and the upper end of the lower connection pipe 65c, respectively, so that the gas sucked through the upper connection pipe 65a. The gas transferred to the branch pipe 65b through the gathering pipe 66a and again passed through the branch pipe 65b is transferred to the lower connecting pipe 65c through the gathering pipe 66b.

A pressure indicator 67 is installed at the upper end of the upper connection pipe 65a of the gas discharge connection pipe 65 to observe the gas pressure.

An airtight holding member 68 is installed between the fuselage 61 and the upper connection pipe 65a and the lower connection pipe 65c to maintain airtightness in the fuselage 61.

The float valve 70 includes a valve body 71 provided in the middle of the branch pipe 65b, a float arm 72 rotatably supported by the valve body 71, and a float arm 72 of the float arm 72. It is composed of a float (73) which is fixed to the tip portion and is elevated in accordance with the buoyancy in the body (61).

Since the main body 71 of the float valve 70 has the same structure as a conventional float valve, a specific structure is omitted in the drawings.

In addition, upper and lower stoppers 74a and 74b on which the float arm 72 is engaged are provided in the fuselage 61 to regulate the lift position of the float 73.

In the drawings, reference numeral 32 is a support for fixing the inlet and outlet pipes 31, 61a is a bracket for fixing the body 61 to the support 32, 69 is the oil inflow connector 54 On-off valve installed in the middle.

Referring to the process of entering and leaving oil in the underground oil storage facility as an example of the automatic vacuum and gas removal device of the liquid storage device according to the present invention configured as described above are as follows.

First, the arrival process will be described.

As shown in FIG. 1, in the initial state, the inside of the inlet / outlet pipe 31 is in a state in which no oil exists due to free fall in the vertical section 31a located in the connection passage 11. A vacuum is formed in the inlet and outlet pipes 31, and no oil is present in the fuselage 61 of the automatic removal means 60, so that the float 73 descends to the lowered position P1. Thus, the valve body 71 is opened. At this time, the float arm 72 is caught by the lower stopper 74b and remains in a state where it can no longer be lowered.

In this state, since the gas discharge connection pipe 65 is connected to the gas discharge pipe 20 and the float valve 70 is opened, the gas in the cavity 10 is discharged by the vacuum in the inlet and outlet pipe 31. It is sucked into the body 61 through the gas discharge connection pipe 65 from 20.

The gas sucked into the fuselage 61 is introduced into the inlet and outlet pipes 31 through the oil inlet connecting pipe 64 through the oil inlet 62 to remove the vacuum.

When the vacuum in the inlet and outlet pipes 31 is removed, the oil transferred from the oil tank is smoothly introduced into the cavity 10 through the inlet and outlet pipes 31.

If the pressure in the inlet / outlet pipe 31 exceeds the gas pressure as the inlet proceeds, the body of the automatic removing means 60 is connected to the inlet / outlet pipe 31 through the oil inlet connecting pipe 64. 61) flows into.

When oil flows into the fuselage 61, the float 73 in the lowered position P1 floats due to buoyancy. When the float 73 reaches the raised position P2, the valve body 71 closes and the gas is discharged. The connection pipe 65 is closed to stop the gas supply operation. At this time, the float arm 72 is caught by the upper stopper 74a so that the float 73 is no longer injured.

Next, explain the shipping process.

When the loading is completed through the above-described process, and the oil transfer from the oil tank is stopped, the oil in the inlet / outlet pipe 31 and the oil in the fuselage 61 are freed from the cavity 10 or the inlet / outlet. When a predetermined time elapses after falling to the pipe end manifold 40 side, the inside of the inlet / outlet pipe 31 and the fuselage 61 is emptied, and the evaporation gas which generate | occur | produced in the cavity 10 is filled.

Accordingly, the float 73 in the body 61 is lowered to the lowered position P1 position by its own weight, and the valve body 71 is kept open.

In this state, in order to ship the oil in the cavity 10, the floating hose 51 is connected to the buoy 42, and when the pump 30 for delivery in the cavity 10 is operated, the oil in the cavity 10 enters, As it rises through the vertical section of the delivery pipe 31, the gas in the inlet and outlet pipe 31 is pushed out.

At this time, the pushed out gas is introduced into the fuselage 61 through the oil inlet 62 at the lower end of the fuselage 61 through the oil inlet connecting pipe 64 of the automatic removal means 60.

As gas flows into the fuselage 61 continuously and the pressure in the fuselage 61 increases, the gas introduced into the fuselage 61 is connected to the upper connecting pipe 65a, the upper gathering pipe 66a, the branch pipe 65b, and the lower gathering. The gas is discharged to the gas discharge pipe 20 through the pipe 66b, the lower connection pipe 65c, and the external connection pipe 65d.

As the gas is discharged, when the oil is completely filled in the inlet and outlet pipes 31, the shipment by the delivery pump 30 is smoothly performed.

On the other hand, a branch pipe (65b) is provided in the gas discharge connection pipe 65, the valve body 71 of the float valve 70 is installed in each of the branch pipes (65b) any one float valve 70 In the event of a failure, the above-described operation is performed smoothly by the remaining float valve 70 and the branch pipe 65b.

In addition, in the case of repairing the float valve 70 or the like, the closing valve 69 provided in the middle of the oil inflow connecting pipe 64 is closed, and the inlet and outlet pipes are separated by separating the bracket 61a from the support 32. 31) The whole body 61 is separated, repaired, and reassembled.

As described above, according to the present invention, the vacuum and the gas formed in the pipe line of the liquid storage facility are automatically removed so that the liquid can be smoothly loaded and unloaded without generating vibration or noise in the process.

In addition, in the present invention, since the manual operation valve is installed in the pipe line and the vacuum and gas are automatically removed without the manual opening / closing operation of several workers, it is possible to reduce the manpower and cost required for the entry and exit.

On the other hand, the city example is illustrated for the oil storage facility, but is not limited to this, it is possible to apply any kind of liquid storage facility including a vertical pipe.

Claims (3)

The liquid inlet connected to the top of the inlet and outlet pipe having a vertical section extending to the ground connected to the shipping pump installed in the lower part of the storage cavity is formed at the lower end, and is formed at the upper part of the storage cavity at the upper end to the ground. A body having a gas discharge port connected to the gas discharge pipe that extends to the gas discharge connection pipe; And automatic vacuum and gas removal means including a float valve for opening and closing the gas discharge connection pipe in accordance with the liquid level inside the fuselage. According to claim 1, The gas discharge pipe is connected to the upper gas outlet of the fuselage of the upper body and the lower end penetrates the inside of the fuselage and the branch connection to the lower end of the upper connection pipe in the fuselage A plurality of branch pipes, which are connected to the lower end of the branch pipe, the lower connection pipe which is led to the outside through the lower one side of the fuselage, and the external connection pipe which connects the outer end of the lower connection pipe and the upper end of the gas discharge pipe. Automatic vacuum and gas removal device of the liquid storage facility, characterized in that consisting of. The float valve according to claim 1 or 2, wherein the float valve includes a valve body provided in the middle of the branch pipe, a float arm supported by the valve body so as to be rotatable up and down, and a float fixed to the tip of the float arm. Automatic vacuum and gas removal device of the liquid storage facility, characterized in that consisting of.