JPS5821549Y2 - Brackish water separator - Google Patents

Description

[Detailed description of the invention] Conventionally, two types of brackish water separators have been known: a spiral conduit type and a tangential conduit type, each of which has advantages but also has disadvantages.

First, although the spiral conduit type has good separation efficiency, it has a complicated structure, making it unsuitable for strength calculations as a pressure vessel, and has the disadvantage of being expensive.

In addition, the tangential conduit type has lower efficiency than the spiral conduit type, with a capacity of 1 to 1.6 with the same dimensions, making it unsuitable for increasing capacity. However, it had the disadvantage of being susceptible to drain attacks.

Next, conventional spiral conduit type and tangential conduit type brackish water separators will be explained with reference to Figs. 1 and 2.
In the spiral conduit type brackish water separator 2 having the spiral conduit 1 shown in FIG. Rotate the inner wall of separator 5,
Due to centrifugal force, the hot water concentrates on the vessel wall side, and the steam becomes an upward flow inside the brackish water separator side 5 and is separated, with a humidity of 0.01φ
The following pure steam flows along the steam streamline 6 shown in FIG. 4 or the steam streamline 7 shown in FIG. 5 and is discharged to the outside from the steam extraction pipe 8 or 9.

On the other hand, the hot water flows through the hot water outlet pipe 1 as shown by the hot water flow line 10.
1 and is discharged to the outside.

In addition, the brackish water separator 1 shown in FIG. 2 is completely the same except for the spiral conduit 1 shown in FIGS. 4 and 5, which is replaced by a tangential conduit 12.
The mixed flow of brackish water flowing from the tangential conduit type brackish water separator τ follows a linear trajectory as shown by the streamline 13, but the flow when flowing from the spiral conduit 1 in FIG. Whereas the line 4 enters the brackish water separator side 5 at a small tangential angle, the inflow angle of the streamline 13 is considerably large relative to the inner wall of the brackish water separator side 14.

The mixed stream of brackish water entering from the Tangier/Shall conduit 12 therefore impinges on the inner wall of the brackish water separator side 14, thereby generating fine water droplets.

Furthermore, in the spiral conduit type shown in Fig. 1, the intersection between the hot water streamline that has rotated around the inner wall of the brackish water separator side 5 and the streamline 4 that has entered from the air/water mixture population 3 is small. However, in the tangential conduit type shown in Fig. 2, the intersection of the hot water streamlines that have rotated once around the inner wall of the brackish water separator side 14 and the streamline 13 is done at a large angle. As a result, they collide violently, generating fine water droplets here as well.

The tangential conduit type brackish water separator has a drawback in that the performance of the tangential conduit type brackish water separator deteriorates because the fine water droplets generated in this manner drift into the separated steam.

The present invention was proposed in order to eliminate the above-mentioned drawbacks of the conventional conduit. A bent pipe is installed at the entrance of the tangential conduit to rectify the mixed fluid passing through the same part, and it is directed against the inner wall of the steam water separator side. It is an object of the present invention to provide a brackish water separator which allows water to flow in at a small angle and has the performance of a spiral conduit type, despite having a tangential conduit type structure.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 shows an embodiment of the present invention.

In the figure, the same parts as in FIG. 2 are indicated using the same reference numerals.

In FIG. 3, a bent pipe 15 is connected to the inlet of a tangential conduit 12 attached to the side 14 of the brackish water separator to construct a brackish water separator 16 showing an embodiment of the present invention.

The bent pipe 15 is connected to the inlet of the conduit 12 via the flange 17.
In order for the brackish water mixture to flow along the outer inner wall surface of the tangential conduit 12, the inlet of the brackish water mixture is located in a plane perpendicular to the axis on the side of the brackish water separator and relative to the axis of the tangential conduit 12. They are connected in almost perpendicular directions, and only the curved pipe part can receive the impact of sand particles, etc.
This makes it possible to prevent corrosion on the side 14 of the brackish water separator.

Further, the bent pipe 15 can be removed from the flange portion and replaced.

In the figure, 8 is the bottom steam extraction pipe, 3 is the brackish water mixture inlet,
10 is a fuel water flow line, 11 is a hot water discharge pipe, and 18 is the inlet 3.
This is the streamline of the brackish water mixture flowing in.

Now, the brackish water mixture flows in from the inlet 3, follows a curved trajectory as shown by the streamline 18, further swirls around the inner wall of the steam water separator side 14, and due to centrifugal force, the hot water flows out of the hot water discharge pipe 11 along the streamline. The steam is discharged as shown in 10, and the steam is taken out from the take-out pipe 8.

Here, when the steam/water mixture flows from the tangential conduit 12 into the brackish water separator side 14, the inflow angle of the streamline 18 with respect to the inner wall of the brackish water separator side 14 is quite small.

As explained in detail above, the present invention is designed so that the inlet of the tangential conduit installed on the side of the brackish water separator is arranged so that the brackish water mixture flows in while staying on the outer inner wall surface of the tangential conduit. However, since the bent short pipes were connected in a direction substantially perpendicular to the axis of the tangential conduit in a plane perpendicular to the axis on the side of the brackish water separator, the flow of the brackish water mixture flowing from the bent short pipes was After the line is traced, it flows along the outer inner wall of the tangential conduit and directly flows into the inner wall of the steam separator shell at a small inflow angle.

Therefore, although the brackish water separator of the present invention does not have a complicated structure like the conventional spiral conduit type, it has the performance of a spiral conduit type and is equipped with a tangential conduit. However, there are no drawbacks such as fine water droplets being generated and drifting in the separated steam and deteriorating the performance of the brackish water separator.

In other words, the brackish water mixture flowing in from the bent short pipe forms a curve and concentrates on the outer inner wall surface of the tangential pipe.
Since the water flows into the inner wall surface of the brackish water separator body No. 11 at a small inflow angle with respect to the inner wall, fine water droplets are not generated and the performance of the brackish water separator is not deteriorated.

The brackish water separator of this invention can also be applied to flashers, silencers, etc.

[Brief explanation of the drawing]

1 and 2 are plan views showing conventional spiral conduit type and tangential conduit type brackish water separators, respectively, FIG. 3 is a plan view of a brackish water separator showing an embodiment of the present invention, and FIG. 4 and FIG. 5 are perspective views of a conventional spiral conduit type brackish water separator. Explanation of the main parts of the diagram, 3... Brackish water mixture inlet, 8...
・Steam extraction pipe, 11...Hot water outlet pipe, 12...Tangential conduit, 14...Brackish water separator side, 15...
・Bent short pipe, 16...Brackish water separator.

Claims (1)

[Scope of utility model registration request] In a tangential conduit-type brackish water separator in which a brackish water mixture is introduced, separated into hot water and steam in the body of the brackish water separator, and then discharged, the brackish water mixture enters the inlet of the tangential conduit. The inlet of the brackish water mixture is oriented in a direction substantially perpendicular to the axis of the tangential conduit in a plane orthogonal to the axis on the side of the brackish water separator so that it flows along the outer inner wall surface of the tangential conduit. Connect the bent short pipes,
A brackish water separator characterized in that a brackish water mixture is allowed to flow in from the inlet of the bent short pipe.