JPH025845Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air separator device that separates a mixed gas contained in a fed liquid from the liquid.

Conventional technology A conventional air separator device is generally equipped with a float valve in the upper air chamber in the gas-liquid separator main body, and as the liquid is fed, the bubbles of gas mixed in the liquid are removed from the flow direction of the liquid. It floats to the air reservoir chamber and becomes bubble-like, and as the mixed gas accumulates in the air reservoir chamber, the liquid level in the air reservoir chamber is pushed down by the gas pressure, and when more than a certain amount of gas accumulates, it floats as the liquid level falls. The valve was opened and the gas in the air reservoir was discharged to the outside of the separator body.

Problems that the invention aims to solve: The conventional air separator device described above has a float valve in the air reservoir chamber, and has a configuration that stores the mixed gas and exhausts only the air to the outside, so the air separator device has a relatively large air reservoir chamber. However, it is not possible to reduce the size of the device accordingly, and it has the disadvantage that, for example, it is difficult to install it in a tank truck or the like where miniaturization is desired due to the installation space.

Therefore, it is an object of the present invention to provide an air separator device that eliminates the above-mentioned drawbacks.

Means and Effects for Solving Problems The present invention provides an air separator device that is disposed in the middle of a feed path for feeding liquid from a tank to the outside and separates gas and liquid, the air separator device comprising: A cylindrical portion extending in the horizontal direction and having a notch formed on the upper side that serves as an opening communicating with the downstream side of the feeding path, and a liquid mixed with gas from the upstream side of the feeding path flowing from the lower side of the cylinder. A gas-liquid separation section consisting of a plurality of partition plates extending upward and downward around the cylindrical section for guiding the gas to the upper side of the cylindrical section; and a gas recovery section provided above the gas-liquid separation section, the gas recovery section having an outlet to which piping is connected for returning the mixed gas together with a part of the liquid into the space of the tank. It is something.

As a result, mixed gas contained in the liquid that is fed to the outside from the tank is separated by the gas-liquid separation section, and the separated gas is returned to the tank space from the gas recovery section along with a portion of the liquid. .

Embodiment FIG. 1 shows an embodiment of an air separator applied to an air separator device according to the present invention. In the figure, approximately in the center of the main body 2 of the air separator 1, there is a
A plurality of partition plates 3 are vertically vertically spaced apart from each other by a predetermined distance. As shown in FIG. 2, each partition plate 3 has a circular hole 3a formed in its center, and a cylindrical portion 4 is fitted into the hole 3a. That is, the cylindrical portion 4 passes through the hole 3a of each partition plate 3 and crosses approximately the center of the main body 2. A pair of partition plates 3 facing each other with a predetermined distance apart form a guide portion 3b that guides the movement of liquid from the bottom to the top of the cylindrical portion 4.
A flow path formed by the guide portion 3b extends along the partition plate 3, and the mixed gas flows through the guide portion 3 as described later.
It separates from the liquid when passing through b.

Further, the cylindrical portion 4 has a cutout portion 4a extending in the horizontal direction and having an opening at approximately the upper half of the cross section of the cylindrical portion 4 at the upper portion;
It has a notch 4b that is inclined so that the opening gradually narrows in the direction of arrow _X1 , which is the flow direction of the liquid.
A gas-liquid separation section 5 is formed by a plurality of partition plates 3 and a cylindrical section 4.
is configured.

A gas recovery section 6 is provided above the gas-liquid separation section 5 to recover mixed gas that is separated from the liquid and rises. Reference numeral 7 denotes a discharge port for discharging the separated mixed gas to the outside of the main body 2 along with a portion of the liquid, and is provided at the center of the top plate 2a of the gas recovery section 6.

Reference numeral 8 denotes a strainer made of a mesh component, which has a cylindrical shape and is detachably attached to an annular collar 9a of a lattice-like support 9. Reference numeral 10 denotes a handle of the strainer, which is fixed to the support 9 with a nut 11. The protrusion dimension of the handle 10 from the support body 9 is adjusted by a nut 11 screwed into the tip threaded portion, and its annular tip portion 10a is brought into contact with the inside of the lid 12.

Further, the strainer 8 is fitted into a hole 14a of a wall 14 that defines the cylindrical portion 4 and the strainer chamber 13, and the flange 9a of the support body 9 is brought into contact with the wall 14, and
Movement in the X ₁ direction is restricted, and movement in the X ₂ direction is restricted by the lid 12 with which the handle 10 comes into contact, so that it is installed without wobbling.
The lid 12 is fixed to the flange 2b of the main body 2 by bolts 16 with a gasket 15 interposed therebetween, and the opening 17 is hermetically closed.

As shown in FIG. 3, the air separator 1 is equipped with an instrumentation unit including a pump 19 that supplies the liquid in the tank 18 to the outside, and a flowmeter 21 that measures the flow rate of the liquid that is supplied from the tank 18 to the external tank 20. 22. The instrumentation section 22 is attached to a tank truck 23.

In addition, each device of the instrumentation section 22 is connected to piping 24, 24a.
24d, and the liquid in the tank 18 can be fed to the external tank 20 via the pipe 24. Further, the pipe 25 communicates the discharge port 7 of the air separator 1 with the upper opening of the tank 18 of the tank truck 23.

Here, when feeding the liquid in the tank 18 of the tank truck 23 to the external tank 20, the pump 19
When is driven, the liquid in the tank 18 is sucked through the piping 24a, and the liquid is force-fed to the air separator 1 through the piping 24b. Gas bubbles are mixed in the liquid fed to the air separator 1 from the piping 24b, and the air bubbles are also measured as a flow rate when measuring the flow rate. It is necessary to separate and remove the mixed gas.

The liquid flowing into the main body 2 of the air separator 1 from the pipe 24b reaches the gas-liquid separation section 5, which has a larger flow path area than the pipe 24. The liquid passes through the guide portions 3b between the partition plates 3 standing vertically at a predetermined distance, is rectified without being disturbed, and rises in the direction of the arrow Y.

As shown in FIG. 2, the guide portion 3b expands in the directions of arrows Z ₁ and Z ₂ , so that the flow velocity of the liquid is greater than the guide portion 3 b.
decelerated within. Therefore, the liquid comes into contact with the outer peripheral bottom part 4c of the cylindrical part 4 at a flow rate lower than that when being fed through the pipe 24, and gradually rises while being divided into two directions (directions of arrows Z ₁ and Z ₂ ). As the flow rate of the liquid increases, the bubbles of the gas mixed in the liquid float faster than the liquid in the direction of the arrow Y, allowing smooth gas-liquid separation. The bubbles are guided upwardly from both sides of the cylindrical member 4 in FIG. 2 by the partition plates 3 while being restricted from moving in the directions of arrows X ₁ and X ₂ .

Further, the liquid rises through the guide portion 3b along the bottom outer periphery 4c of the cylindrical portion 4, passes through the hole 3a of the partition plate 3, and reaches the inside of the cylindrical portion 4 through the notches 4a and 4b. Further, the liquid flows into the strainer 8 through the lattice-shaped gaps in the support body 9, and reaches the strainer chamber 13 after removing dust and the like.

Therefore, the bubbles floating in the direction of the arrow Y in the guide section 3b are separated from the flow of the liquid into the cylindrical section 4, rise to the gas recovery section 6, and are separated from the liquid. Note that the partition plate 3 is located above the cylindrical member 4 (in the direction of arrow Y).
Therefore, the bubbles above the cylindrical member 4 ascend the guide part 3b while being restricted from moving in the directions of arrows X _{1 and}
It does not flow into the interior of the liquid and can be separated from the liquid.

The bubbles separated by the gas-liquid separation section 5 float to the liquid surface of the gas recovery section 6 and become foam-like. These bubbles gradually accumulate in the gas recovery section 6 as the liquid is fed. However, the gas recovery section 6 is connected to the exhaust port 7 and the piping 2.
Since it is constantly connected to the tank 18 via 5,
As the bubbles accumulate in the gas recovery section 6, the foamy mist is immediately discharged from the discharge port 7 to the outside of the air separator 1 along with a portion of the liquid, and is then passed through the piping 25 into the tank 18 from the upper opening of the original tank 18. It is returned to the space part of. For this reason, there is no problem where too many bubbles from the mixed gas accumulate in the gas recovery section 6, descend toward the gas-liquid separation section 5, and get mixed into the liquid again.

Note that the flow path of the discharge port 7 is narrowed to a relatively small size, and by setting the discharge port 7 to an arbitrary size, the ratio of the discharge amount of mist to the liquid flow rate can be set. If it is desired to vary the amount of mist discharged depending on the type of liquid, a throttle valve may be provided in the discharge port 7 or the piping 25 to enable adjustment. Also, the mist containing part of the liquid along with the gas is returned to the tank 18 from the gas recovery section 6, but the return amount is only a few percent of the total flow rate, which is sufficient to remove air bubbles.
There is no problem in feeding the liquid inside to another tank 20.

The foamy mist from the gas recovery section 6 is returned to the original space of the tank 18 through the drain port 7 and the piping 25, and the tank 18 functions as a mist receiver for diffusing the foamy mixed gas. Therefore, the liquid part contained in the mist is pumped again to the pump 19.
The liquid is fed to the air separator 1 so that the liquid is not wasted.

In addition, when the liquid is kerosene, the separated gas tends to become foamy and cloudy, but since the cloudy mist generated by the separated bubbles is returned to the tank 18 from the gas recovery section 6, the gas can be recovered. Part 6
The liquid is not accumulated in the tank 18, floats on the liquid surface in the tank 18, and is finally fed from the tank 18. Therefore, it is convenient when performing gas-liquid separation using the small air separator 1. Note that since the mist is returned to the tank 18 before the flow meter 21, problems such as measurement errors do not occur when measuring the flow rate.

In this way, the liquid in the tank 18 is transferred to the pipe 2.
Only the liquid that is pressure-fed by the pump 19 through the air separator 1 and separated into gas and liquid by the air separator 1 is transferred from the strainer chamber 13 of the air separator 1 to the piping 24c,
It passes through the flow meter 21 and is fed to the tank 20 from the piping 24d.

In addition, when cleaning the strainer 8, remove the bolt 16.
Remove the lid, open the lid 12, hook your finger on the annular tip 10a of the handle 10, and pull it out in the direction of arrow _X2 .
The strainer 8 is connected to the opening 1 along with the handle 10 and the support 9.
7 to take it out of the main body 2. Next, the strainer 8 is removed from the support 9 and the dust accumulated inside the strainer 8 is removed.

After cleaning the strainer 8, the strainer 8 is attached to the support 9 again, inserted into the strainer chamber 13 through the opening 17, and the opening 17 is closed by fixing the lid 12 to the flange 2b. Note that the air separator 1 has a built-in strainer 8, and there is no need to provide another strainer on the pipe 24c between the air separator 1 and the flow meter 21.

Effects of the Invention As described above, the air separator device according to the present invention separates the gas separated from the liquid by the gas-liquid separation section having a plurality of partition plates provided upwardly and downwardly around the cylindrical section. As the gas is returned to the tank space from the gas recovery section, there is no need for a conventional float valve that opens and closes depending on the separated gas and discharges the gas to the outside. In addition, since no space is required to install a float valve, the device can be made more compact, making it cheaper to manufacture.In addition, since not only gas but also foamy liquid is returned to the original tank, it is possible to use kerosene, etc., for example. Since the white cloudy mist that is generated is discharged to the original tank without being accumulated, there is no inconvenience caused by too much foam accumulating and returning to the liquid, and the tank can also function as a mist receiver, preventing mist from accumulating inside. It is convenient for small-sized devices, and has the advantage of being particularly suitable for use in places where installation space is restricted, such as tank trucks.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of an air separator applied to an air separator device according to the present invention, and FIG. 2 is a longitudinal sectional view taken along the line - in FIG. 1.
FIG. 3 is a configuration diagram for explaining the application of the device of the present invention to a tank truck. DESCRIPTION OF SYMBOLS 1... Air separator, 2... Main body, 3... Partition plate, 4... Cylindrical part, 5... Gas-liquid separation part, 6...
Gas recovery section, 7...discharge port, 8...strainer,
10... Handle, 12... Lid, 13... Strainer chamber, 18, 20... Tank, 19... Pump, 2
1...Flowmeter, 24, 24a to 24d, 25...
Piping.

Claims (1)

[Scope of Claim for Utility Model Registration] An air separator device that is installed in the middle of a feed path for feeding liquid from a tank to the outside and separates gas and liquid, the air separator device: on the downstream side of the feed path. A cylindrical part with a notch formed on the upper side to serve as an opening communicating with the cylindrical part and extending in the horizontal direction; a gas-liquid separation section consisting of a plurality of partition plates extending upward and downward around the cylindrical section for guiding; and a gas-liquid separation section that separates the mixed gas from the liquid by the gas-liquid separation section. It has an outlet to which a pipe for returning a part of the liquid into the space of the tank is connected, and a gas recovery section provided above the gas-liquid separation section. Air separator device.