JP3909890B2 - Mixed fluid separator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mixed fluid separator that separates and discharges only one fluid having a large specific gravity from mixed fluids having different specific gravity, and more specifically, for example, automatically water having a large specific gravity mixed in an oil storage tank or the like. It is related with the separator which can be isolate | separated and discharged | emitted out of a system.
[0002]
[Prior art]
As an oil-water separator as a kind of a conventional mixed fluid separator, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 3-83603. This is a partition wall provided in the separator casing, a hollow float having a specific gravity between oil and water is arranged, and a valve body for opening and closing the outlet is connected to this float. Only water with large specific gravity separated by the partition wall in the casing can be discharged out of the system.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional one, there is a problem that a fluid having a large specific gravity to be discharged is limited to water. As the mixed fluid, there are various fluids such as mixed fluids of oils having different specific gravity, mixed fluids of toluene, xylene, kerosene, and the like. Depending on the specific gravity, there was the complexity that the specific gravity had to be changed by changing the float each time.
[0004]
In addition, in the above-mentioned conventional system, when the inflow of water into the separator is small and oil with a small specific gravity mainly flows in, the valve port cannot be closed reliably and the oil with a small specific gravity is There was a problem of leaking. In other words, if the amount of water in the casing is low and oil reaches the lower opening of the partition wall, and a large amount of oil flows in, the weight of the float is almost offset by buoyancy, and the outlet is securely closed. It cannot be done, and the oil leaks out of the vessel. In particular, at locations where mechanical vibrations are transmitted to the separator, the vibrations further incompletely close the outlet, and a large amount of oil leaks out.
[0005]
Therefore, the technical problem of the present invention is that only the fluid having a large specific gravity is discharged from the separated mixed fluid, and the fluid having a small specific gravity does not leak out to the outside of the device, and it depends on the specific gravity of the fluid to be discharged. Thus, it is possible to adjust the specific gravity of the float so as to obtain a mixed fluid separator capable of discharging only a fluid having a high specific gravity from various mixed fluids.
[0006]
[Means for Solving the Problems]
The means of the present invention devised to solve the above problem is to form an inlet, a reservoir, and an outlet of the mixed fluid in the separator casing, and the mixed fluid that has flowed into the reservoir has a specific gravity. The flow is separated by the difference, and the outlet is opened and closed by the floating of the float placed in the reservoir, and the separated fluid with a large specific gravity is discharged to the outside. It is arranged in a free state that can move up and down in the part, and the outlet is directly opened and closed on the outer surface of the lower part of the vertically long float, and specific gravity adjusting means for adjusting the specific gravity of the float is provided. .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Due to the difference in specific gravity, the mixed fluid that has flowed into the casing reservoir separates and stores a fluid having a large specific gravity in the lower part and a fluid having a small specific gravity in the upper part. By forming the float in a vertically long shape and opening and closing the outlet directly on the outer surface of the lower part, the position of the outlet and the position of the floating liquid level of the float can be greatly separated. The fluid with a large specific gravity is discharged to the outside only when the fluid with a large specific gravity accumulates to the position of the floating liquid level and the float floats and opens the outlet.
[0008]
The specific gravity of the fluid can be changed variously by providing the specific gravity adjusting means of the float and adjusting the specific gravity of the float appropriately, and only the water is discharged from the mixed fluid of oil and water The application is not limited as in the example, and only a fluid having a large specific gravity in various mixed fluids can be discharged.
[0009]
As a means for adjusting the specific gravity of the float, for example, a coil spring is attached to one end of the float, and the spring force of the coil spring is weakened or strengthened. By adjusting to, the apparent specific gravity of the float can be adjusted as appropriate.
[0010]
When a fluid with a large specific gravity is discharged and its liquid level drops, the float is lowered due to a decrease in buoyancy.By directly closing the outlet at the outer surface of the lower part, a predetermined amount of fluid with a large specific gravity is The fluid with a small specific gravity accumulated in the upper part is not leaked while remaining in the reservoir.
[0011]
【Example】
Examples of the present invention will be described. In FIG. 1, a separator casing is formed by a main body 1 and a lid 2, and a mixed fluid reservoir 3, and a mixed fluid inlet 4 and outlet 5 are provided in the main body 1, thereby providing a mixed fluid separator. Constitute.
[0012]
The reservoir 3 communicates with the inflow port 4 and a vertically long float 6 is disposed in a free state in the space. The float 6 has a vertically long shape with a bottomed cylinder, and is provided with a plurality of guides 8, 9, 10, 11 provided in the main body 1 so as to directly open and close the outlet 5 at the center of the lower outer surface 7. It can be moved up and down along. The float 6 can be manufactured as a hollow float by pressing and welding a stainless steel thin plate, or can be manufactured with a synthetic resin having a relatively low specific gravity such as polypropylene and polyethylene as shown in FIG. . When the float 6 is made of a synthetic resin, a metal thin plate (not shown) can be attached to the lower outer surface 7 that contacts the outlet 5 to enhance sealability and durability.
[0013]
An insertion hole 14 is provided in the center of the float 6 and a rod-shaped metal weight 24 is inserted so that the specific gravity can be changed by adjusting the weight of the float 6. A coil spring 26 is attached to the lid 2 via a spring seat 27 and an adjusting screw 28 on the top of the float 6. A rotation handle 29 is provided on the top of the adjustment screw 28, and a rib 30 for preventing rotation is provided on the side of the spring seat 27. By rotating the handle 29, the adjustment screw 28 is also rotated, and the spring seat 27 is rotated. By being screw-fed and displaced up and down, the spring force of the coil spring 26 can be strengthened or weakened, or the urging direction can be changed to the tension direction or the compression direction. In this embodiment, the weight 24, the coil spring 26 and the adjusting screw 28 constitute the specific gravity adjusting means of the float 6, and the apparent specific gravity of the float 6 is determined by the weight of the weight 24 and the spring force of the coil spring 26. It can be adjusted appropriately.
[0014]
The outlet 5 is disposed through the center of the valve seat member 12 screwed to the main body 1, and its downstream side communicates with the outlet 13. The valve seat member 12 is provided with a synthetic rubber seat 15 as an elastic member in a substantially ring shape so as to cover the side surface of the outlet 5 and the outer peripheral surface of the upper end at the upper end portion, and in contact with the outer surface 7 of the float 6. Improve sealing.
[0015]
Under the float 6, support seats 16 and 17 are provided to support the float 6 when it contacts the valve seat member 12. The support seats 16 and 17 allow the lower portion of the float 6 and the main body to be supported. A space 18 is formed between the bottom of 1 and used as a storage space for foreign matters such as dust.
[0016]
The separator casing legs 19 and 20 are attached to the lower part of the main body 1, and the pressure equalizing pipe 22 that communicates with the reservoir 3 through the valve 21 and the blower that communicates with the reservoir 3 through the valve 23. Connect the tube 25.
[0017]
The state shown in FIG. 1 shows a state in which the float 6 is lowered downward and the outlet 5 is closed. The mixed fluid flows in from the inflow port 4, and the fluid having a large specific gravity is separated into the lower portion and the fluid having a small specific gravity is separated and accumulated in the upper portion. When the amount of fluid having a large specific gravity increases and reaches the floating liquid level of the vertically long float 6, the float 6 floats up and is separated from the valve seat member 12 to open the outlet 5 and collect in the lower part. The fluid having a large specific gravity is discharged from the outlet 13 to the outside. When fluid with a large specific gravity is discharged and the floating liquid level drops, the float 6 also descends at the same time, and the outlet 5 is closed while leaving a fluid with a large specific gravity at the bottom of the reservoir 3, so that There is no leakage of accumulated low specific gravity fluid.
[0018]
Of the mixed fluid flowing in from the inlet 4, the spring force of the coil spring 26 and the weight of the weight 24 are adjusted according to the specific gravity of the fluid to be discharged, and the apparent specific gravity of the float 6 is appropriately adjusted. Thus, only the fluid having a predetermined specific gravity can be discharged out of the vessel.
[0019]
In this embodiment, the float 6 is formed in a vertically long cylindrical shape, so that a larger volume can be secured in a small space compared to the case of a spherical or prismatic shape, and the weight of the float 6 is also increased. It can be increased in proportion to the volume, and the sealing performance when the outlet 5 is closed can be improved.
[0020]
In this embodiment, since the blow pipe 25 is provided, a compressed air pipe, a steam pipe or the like is connected to the outlet 13 side to flow down to the blow pipe 25 side, so that the valve seat member 12 and the float 6 are flown. The lower space 18 can be back-washed and foreign matter such as dust can be removed to the outside.
[0021]
【The invention's effect】
In the mixed fluid separator of the present invention, the float is formed in a vertically long shape, and the outlet is directly opened and closed at the outer surface of the lower part thereof, thereby increasing the position of the floating liquid level of the outlet and the float. Only the separated fluid with large specific gravity can be discharged outside the container, and the fluid with small specific gravity accumulated on the upper part is not leaked and discharged, and the float specific gravity adjusting means is provided. In addition, by adjusting the specific gravity of the float as appropriate, it is possible to obtain a mixed fluid separator capable of discharging only a fluid having a large specific gravity from mixed fluids having various specific gravity.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a mixed fluid separator according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Reservoir part 4 Inlet 5 Outlet 6 Float 12 Valve seat member 13 Outlet 24 Weight 25 Blow pipe 26 Coil spring 27 Spring seat 28 Adjustment screw 29 Rotation handle 30 Anti-rotation rib

Claims (1)

The separator casing is formed with an inlet, a reservoir, and an outlet for the mixed fluid, and the mixed fluid that has flowed into the reservoir is separated by the difference in specific gravity between the floats. Open and close the outlet to discharge the separated fluid with a large specific gravity to the outside of the vessel.The float is formed in a vertically long shape and placed in a free state in the reservoir so that it can freely move up and down. -A mixed fluid separator characterized by having specific gravity adjusting means for directly opening and closing the outlet at the outer surface of the lower part of the float and adjusting the specific gravity of the float.

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