JPS6323967Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a steam water separator.

It is already known that steam and water can be separated using a cyclone separator or an axial flow separator. However, cyclone separators and axial flow separators have the disadvantage that when the degree of dryness drops below 90%, the separation efficiency deteriorates extremely and water is swept away. To compensate for this shortcoming,
Separators were rapidly becoming larger.

In view of the above points, the present invention aims to provide a compact steam/water separator that can be used even when the degree of dryness is poor. Divided into two separation chambers, with a steam inlet in the side cylinder of the lower separation chamber, a discharge pipe in the bottom of the lower separation chamber, and a steam outlet pipe in the upper separation chamber, the upper and lower separation chambers are communicated through the partition plate. The steam-water separator is provided with an inner cylinder, an axial flow type centrifugal separator inside the inner cylinder, and a downcomer pipe that connects the upper and lower separation chambers and guides the separated water in the upper separation chamber to the lower separation chamber. .

To explain the present invention according to the drawings, FIG. 1 is a longitudinal sectional view of one embodiment of the present invention, and FIG.
FIG. FIG. 3 is a longitudinal sectional view of another embodiment of the present invention. Reference numeral 1 in the figure is a separation cylinder, which is divided into upper and lower separation chambers 3 and 4 by a partition plate 2. A steam inlet 5 is provided in the side tube portion of the lower separation chamber 4 . Although this embodiment shows a case in which the steam inlet is orthogonal to the separation tube, it may also be attached tangentially to the separation tube. A discharge pipe 6 for discharging separated water is provided at the bottom of the lower separation chamber 4, and a steam outlet pipe 7 is provided in the upper separation chamber.
In this embodiment, the steam outlet pipe 7 is shown attached to the upper plane of the upper separation chamber, but the invention is not limited to this, and it may be attached tangentially to the separation tube in the same way as the steam inlet. . The upper and lower separated chambers are communicated with each other by an inner cylinder 8 provided through a partition plate. This inner cylinder 8 is provided with an axial flow type centrifugal separator 9. Further, the upper and lower separation chambers are provided with a downcomer pipe 10 that guides the water separated in the upper separation chamber to the lower separation chamber. The downcomer pipe that communicates the upper and lower separation chambers may be provided inside the separation cylinder as shown in Figure 1.
It may also be provided outside the separation cylinder as shown in FIG.

Next, to explain the operation, the steam and water flowing in from the steam inlet collide with the inner cylinder protruding into the lower separation chamber, whereby a portion of the water is separated (first stage). Next, the water droplets are centrifuged using an axial flow centrifuge installed in the inner cylinder (second stage). The steam flowing out of the inner cylinder becomes high-quality steam and is transferred to the outside of the system through the steam outlet pipe. The separated water separated in the upper separation chamber reaches the lower separation chamber through the downcomer pipe, and is discharged from the system through the discharge pipe together with the separated water separated in the lower separation chamber.

The present invention is constructed as described above, and has two stages of separation within the separator. In other words, large water droplets are separated by gravity fall, and fine water droplets are centrifuged in the second stage, resulting in a very compact separator. Moreover, high-quality steam can always be obtained even from steam with poor dryness.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a longitudinal sectional view of another embodiment. 1... Separation tube, 2... Partition plate, 3... Upper separation chamber, 4... Lower separation chamber, 5... Steam inlet, 6...
...Exhaust pipe, 7...Steam outlet pipe, 8...Inner cylinder, 9...
...Axial flow centrifuge, 10... Downcomer pipe.

Claims (1)

[Scope of utility model registration request] The separation tube 1 is divided into two by a partition plate 2 into an upper separation chamber 3 and a lower separation chamber 4, a steam inlet 5 is connected to the side cylinder part of the lower separation chamber 4, a discharge pipe 6 is connected to the bottom of the lower separation chamber 4, and a discharge pipe 6 is connected to the bottom of the lower separation chamber 4. A steam outlet pipe 7 is provided in the separation chamber 3, an inner cylinder 8 is provided that penetrates the partition plate 2 and communicates the upper and lower separation chambers 3 and 4, and an axial flow type centrifugal separator 9 is provided in the inner cylinder 8. A steam-water separator characterized in that a downcomer pipe 10 is provided for communicating the upper and lower separation chambers 3 and 4 and guiding the separated water in the upper separation chamber 3 to the lower separation chamber 4.