JPH048981Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a separator that is attached to gas piping for steam, compressed air, etc. to separate water in the gas (for example, condensed water) and remove it from the system. In particular, the present invention relates to the improvement of a steam/water separator that swirls fluid to separate steam and water by the action of centrifugal force, and further traps minute water droplets with a filter.

This type of steam/water separator swirls the fluid in the upper part of the casing, uses centrifugal force to shake out water droplets in the gas to the outside, and then uses a filter to increase the separation efficiency of the gas. is allowed to pass through to the outlet side, and the separated water droplets are discharged to the outside of the casing by a drain valve placed at the bottom of the casing.

Prior art A conventional steam/water separator is, for example,
There is one proposed in No. 202951 (see Utility Model Application Publication No. 107719/1983). This is done by placing a cylindrical partition member in the upper part of the casing, forming an annular space between the partition member and the casing outside the casing, placing swirl vanes in the annular space, and using the upper part of the annular space as an inlet. , the lower part is connected to the drain valve part, the hole inside the partition member is filled with a filter, and the filter is connected to the outlet side. Therefore, since the fluid from the inlet is swirled by the swirling vanes in the annular space, water droplets are thrown out by the action of centrifugal force. The separated water droplets flow down and are discharged from the system through a drain valve. Furthermore,
The swirling flow passes through the filter in the hole inside the partition member, where minute water droplets are captured and grow collectively, and drop into the drain valve part under their own weight and are discharged out of the system, with only the gas heading toward the outlet side.

Problems to be Solved by the Present Invention In the above method, some of the water droplets are carried away to the outlet side, making it impossible to increase the separation efficiency of air and water beyond a certain level.

This is because the water droplets captured by the filter are carried back to the outlet by the gas flow at the outlet side of the filter before they aggregate and grow as large as they can fall under their own weight.

Means for Solving the Problems The technical means of the present invention taken to solve the above problems is to dispose swirling blades in the annular space formed by the casing and the partition member, and to generate air by centrifugal force due to swirling. In a steam/water separator, a filter is installed on the outlet side of the swirl vane to further separate the steam and water, and the separated water droplets are discharged from the system by a drain valve placed in the space below the filter. A water droplet trapping plate is provided on the side, and a communicating pipe is opened at one end at the bottom of the trapping plate and at the other end at a drain valve.

Effect The operation of the above technical means will be explained.

An annular space is formed around the outer periphery of the cylindrical partition member, and the swirling vanes are located in the annular space, so that the fluid swirls when passing through the annular space. Water droplets with a large mass contained in the fluid are blown outward and separated by the action of centrifugal force. The large-mass water droplets thrown out flow down along the inner peripheral wall of the casing or are removed to the outside by a drain valve. Microscopic water droplets and gases flow into the filter section. Minute water droplets are captured in the filter section, collect and grow, and water droplets that are large enough to drip under their own weight flow down to the drain valve section or are removed to the outside. Water droplets that cannot drip due to their own weight are captured by a capture plate on the outlet side of the filter.
It flows down to the drain valve section through the communication pipe and is removed to the outside by the drain valve.

Effect of invention The present invention produces the following specific effects.

Since the water droplets captured by the filter are not re-engulfed by gas and transported to the outlet side, the efficiency of separating air and water is extremely high.

Since the communication pipe is a pipe with only both ends open,
Even when water droplets are flowing down to the drain valve section, they are hardly affected by the gas flow, so that once they have entered the communication pipe, the water droplets will surely flow down to the drain valve section.

Example An example showing a specific example of the above technical means will be described. (See Figures 1 to 3) First embodiment (See Figure 1) Upper body 1, lower body 2, and bottom cover 3 are connected with bolts 20,
At 21, the separator casing 4 is installed airtightly.
form. The upper body 1 has a fluid inlet 5 and an outlet 6 coaxially formed in the upper part thereof.

A double, substantially cylindrical partition wall member 7 is arranged inside the upper body 1. The outer cylinder has a straight shape and is formed lower than the inner cylinder. The inner cylinder has a shape that gently widens at the top and bottom. Incidentally, the outer cylinder can be omitted and the main body 1 can also be used. A tapered screen 8 is arranged outside the partition member 7. The inlet 5 is connected through a screen 8 to the annular space 9 between the double cylindrical shapes of the septum member 7, and the inside of the septum member 7 is connected to the outlet 6.

A cylindrical partition tube 10 extending below the partition wall member 7 is fitted inside the partition wall member 7. Partition tube 1
0 is filled with the filter 11 by providing a space on the outlet 6 side in which the capture plate 25 and one end of the communication tube 26 are arranged. The filter 11 is a thin wavy net made of thin metal wires and glass fibers, stacked so that the waves alternate, and its outer diameter is large enough to fit into the hole in the partition tube 10, and its inner diameter is It has a size that allows the communication pipe 26 to fit therein. A capture plate 25 having an inverted conical shape and having a through hole 27 through which gas passes is press-fitted into the end of the partition tube 10 on the side of the outlet 6. One end is opened at the lower part of the inverted conical top of the capture plate 25, passes through the filter 11, and the other end is opened at the bottom of the inverted conical top.
A communication pipe 26 opened at the drain valve inside is arranged.
Filter 11 is screen 2 attached above and below
2 and 23 prevent it from slipping out.

The annular space 9 is connected to the outlet 6 from the lower end of the partition tube 10 through a hole inside thereof. A swirl vane 12 is formed integrally with the partition member 7 in the annular space 9.

A spherical float 14 is housed in a drain valve chamber 13 formed by a lower body 2 and a bottom cover 3. A drain valve seat 15 is attached to the inner end of a drain port 16 on the bottom cover 3. A float cover 17 is attached to cover the float 14. A connecting opening 18 is opened in the lower part of the float cover 17. Reference number 19 is a ventilation hole provided in the upper part of the float cover 17.

Fluid entering the annular space 9 from the inlet 5 is swirled by swirl vanes 12. Water droplets with a large mass in the fluid are swung outward and separated by the action of centrifugal force. The large-mass water droplets swung outward flow into the drain valve chamber 13 along the inner circumferential wall of the lower body 2 and descend. Minute water droplets and gas flow into the inside of the partition tube 10 from the lower end thereof. Since the inside of the partition wall 10 is filled with a filter 11, minute water droplets are captured by the filter 11, and water droplets that have grown large enough to fall under their own weight flow down to the drain valve part.
Water droplets that are too large to fall under their own weight try to be carried to the outlet 6 at the outlet end of the filter 11, but they collide with the capture plate 25, are captured, and grow together to reach the inverted conical top of the capture plate 25. It collects and drips into the communication pipe 26 due to its own weight, and reaches the drain valve section along the inside of the communication pipe 26. Therefore, only gas flows towards the outlet 6. Water flowing down into the drain valve chamber 13 enters the interior through the connection opening 18 of the float cover 17. At this time, the gas inside the float cover 17 exits to the outside through the ventilation hole 19. float 14
floats up and down according to the water level, opens and closes the drain valve port of the drain valve seat 15, and discharges only water from the drain port 16 to the outside of the system.

Second embodiment (see Fig. 2) In the second embodiment, the first embodiment (see Fig. 1)
The same members are given the same reference numerals, and detailed explanations will be omitted.

A semicircular capture plate 25 having a substantially inverted U-shaped cross section is press-fitted into the end of the partition tube 10 on the outlet 6 side. Capture plate 25
The inner diameter side may be formed to be longer than the outer diameter side toward the bottom, so that water droplets gather on the inner diameter side and drip easily. At the bottom of the capture plate 25, there is a communication pipe 2 which has one end opened larger than the inner diameter of the capture plate 25, passes through the filter 11, and has the other end opened at a drain valve inside the float cover 17.
Place 6.

Water droplets that are captured by the filter 11 and are large enough to not fall under their own weight try to be carried to the outlet 6 at the outlet end of the filter 11, but they collide with the capture plate 25, are captured, and grow collectively until they reach the capture plate 25.
It drips into the communication pipe 26 from the inner diameter side and reaches the drain valve section. Note that since the gas passing through the filter 11 is swirled by the swirling vanes 12, most of the captured water droplets that cannot fall tend to be carried from the outer diameter side of the filter to the outlet 6 and collide with the semicircular trapping plate 25. .

Third Embodiment (See FIG. 3) In the third embodiment as well, the same members as in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

Inside the upper body 1, a double substantially cylindrical partition member 7 is arranged. The outer cylinder has a straight shape and is formed lower than the inner cylinder. The inner cylinder has a shape that gradually widens at the top and center. The outer cylinder can be omitted and the upper body 1 can also be used. The inlet 5 is connected through a screen 8 to the annular space 9 between the double cylindrical shapes of the septum member 7, and the inner end 28 of the septum member 7 is connected to the outlet 6. A swirl vane 12 is formed integrally with the partition member 7 in the annular space 9.

The swirling vane 12 and the partition wall member 7 are connected to each other on the outside of the partition wall member 7.
The filter 11 is placed between the inner ends 28 of the partition tube 10
The partition tube 10 is placed in such a manner that its upper end is fixed by the stepped portion of the partition wall member 7, and its lower end is fixed by the screen 23. A small gap is provided between the inner periphery of the lower body 2 and the outer periphery of the partition tube 10 for dripping of water droplets.

At the outlet side end of the filter 11, a semicircular capture plate 25 with a substantially U-shaped cross section is arranged. Capture plate 25
A gap is provided between the outer diameter of the lower body 2 and the inner circumference of the lower body 2. The upper end opening of the communication pipe 26 is inserted into at least one part of the lower surface of the semi-circular capture plate 25, and the lower end thereof is opened to the drain valve section in the float cover 17.

Water droplets that are captured by the filter 11 and cannot fall due to their own weight and are engulfed in the gas flow are moved from the outer diameter side of the filter 11 to the inner end 28 of the partition member 7 due to the swirling flow.
However, they collide with the capture plate 25, are captured, grow together, drip down the communication pipe 26, reach the drain valve, and are removed from the system.

[Brief explanation of the drawing]

1 to 3 are cross-sectional views of the steam separator of the present invention. 1...Top body, 2...Lower body, 3...Bottom cover, 5
...Inlet, 6...Outlet, 7...Partition member, 9...
Annular space, 10... Partition tube, 11... Filter, 12... Swivel vane, 13... Drain valve chamber, 14
... Float, 15 ... Drain valve seat, 16 ... Drain port, 25 ... Capture plate, 26 ... Communication pipe.

Claims (1)

[Scope of utility model registration request] A swirling vane is placed in the annular space formed by the casing and the partition member, and air and water are separated by the centrifugal force caused by the swirling. A filter is installed on the outlet side of the swirling vane to further separate the air and water, and the separated water droplets are collected below. In a steam separator that discharges water out of the system using a drain valve placed in a space, there is a water droplet capture plate on the outlet side of the filter, one end is opened at the bottom of the capture plate, and the other end is opened at the drain valve. A steam/water separator equipped with a communicating pipe.