JPH046819Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a separator that is attached to gas piping for steam, compressed air, etc., and separates water (e.g., condensed water) and oil from the gas and removes it from the system. In particular, a swirling flow is generated in the separator casing, water droplets and oil droplets in the gas are separated by the action of centrifugal force, only the gas is passed through the outlet, and the separated water droplets and oil droplets are allowed to flow down and drain. This relates to what is expelled from the casing by a valve.

Prior Art Conventional swirling type steam/water separators are, for example,
This is disclosed in Japanese Patent Application Laid-open No. 187910/1983. In this method, a cylindrical partition member whose lower part expands downward is placed below a swirling vane provided at the upper part of the casing to swirl the fluid, and the upper part is connected to the outlet through the inside of the partition member. , an inlet is opened at the upper part of the swirling vane on the outside of the partition member, and a drain valve is installed at the lower part of the casing. The fluid flowing in from the inlet is swirled by swirling vanes, and water droplets in the gas are shaken out and separated, as they flow downward. Gas rises inside the partition member and flows out from the outlet, and water droplets flow down along the inner circumferential wall of the casing and are removed to the outside by a drain valve.

Problems to be Solved by the Present Invention In this case, there is a problem that the separation efficiency of air and water cannot be increased beyond a certain level. This simply takes advantage of the natural law that when a fluid is swirled, centrifugal force causes objects with greater mass to be swung outward, so the tiny mist-like water droplets swirl from the center. This is because air and water are carried to the outlet side without being separated.

The technical problem of the present invention is to improve the separation efficiency of air and water by separating even minute water droplets in the form of mist that cannot be separated by the centrifugal force caused by the swirling flow.

Means for Solving the Problems The technical means of the present invention taken to solve the above-mentioned technical problems is to arrange swirling vanes in the annular space formed by the casing and the partition wall member, and to generate air by the centrifugal force caused by the swirling. In a steam/water separator that separates water and discharges the separated water droplets to the outside of the system with a drain valve disposed in the space below, on the outside of the partition member, between the inner end of the partition member and the swirl vane, The center side of the rotation is filled with a denser filter than the outer circumference side of the rotation.

Effect The operation of the above technical means is as follows.

The fluid entering from the inlet flows downward while being swirled by means such as swirl vanes in the upper part of the casing.
Water droplets contained in the fluid are thrown out and separated by the action of centrifugal force. The fine mist water droplets pass through the inner end of the partition member while swirling from the center toward the outlet. Between the inner end of the partition wall member and the swirling vane, a filter is filled that is denser on the swirling center side than on the swirling outer circumferential side, so minute water droplets from the center are captured by the dense filter, grow collectively, and flow downward. It drips into the drain valve part due to the fluid flow. Most of the swirling flow that does not contain minute water droplets passes through the inner end of the partition member toward the outlet from the swirling outer circumferential side where the filter is not dense. Water droplets thrown outward by centrifugal force are
It drips downward along the inner circumferential wall of the casing or the outer circumferential side of the filter and flows down to the drain valve.
It is removed to the outside by a drain valve.

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

It is possible to capture minute water droplets that cannot be separated by centrifugal force alone due to the swirling flow, and the captured water droplets can be made to drip to the drain valve part due to the downward flow.
The separation efficiency of air and water can be increased.

Furthermore, by using a filter that is dense only on the swirling center side, fluid resistance does not become large and the swirling flow is not weakened more than necessary.

Embodiment An embodiment illustrating a specific example of the above technical means will be described (see FIG. 1).

Fasten the upper body 1, lower body 2, and bottom cover 3 with bolts 20,
21 to form a separator casing 4. The upper body 1 has a fluid inlet 5 and an outlet 6 coaxially formed in the upper part thereof.

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. In addition,
The outer cylinder can be omitted and the upper body 1 can also be used. The tapered screen 8 is attached to the partition wall member 7
Place it outside. The inlet 5 enters the annular space 9 between the double cylindrical shapes of the partition member 7 through the screen 8.
The inner end 26 of the partition member 7 is connected to the outlet 6. A swirling vane 12 is formed integrally with the partition wall 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 25 is housed in the filter holder 22 between the inner ends 26 of the filter holder 22, the upper end of the filter holder 22 is connected to the step of the partition member 7, and the lower end is connected to the screen 2.
Fix it with 3. A minute gap is provided between the inner periphery of the lower body 2 and the outer periphery of the filter holder 22 for dripping of water droplets. The filter 25 is a thin wavy net made of thin metal wires and glass fibers, which are stacked densely on the center side and loosely on the outer periphery side so that the waves alternate. By changing the number of stacked filters, the density and density of the filters 25 can be adjusted as desired.

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.
Attach the float cover 17 to cover the float 14. Connecting opening 18 at the bottom of the float cover 17
Open. A ventilation hole 19 is provided in the float cover 17.

Fluid entering the annular space 9 from the inlet 5 is swirled by swirl vanes 12. Large-mass water droplets in the fluid are swung outward by the action of centrifugal force, separated, and dripped into the drain valve. The minute water droplets in the form of mist are captured by the dense portion of the filter 25 while swirling from the center, and dripped into the drain valve section by a downward flow. The falling water drops enter the float portion 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. The float 14 rises and falls 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.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a steam separator according to the present invention. 2...Lower body, 3...Bottom cover, 5...Inlet, 6...
...Outlet, 7... Partition member, 9... Annular space, 12
...Swirling vane, 25...Filter.

Claims (1)

[Scope of utility model registration request] A steam/water separator in which swirling vanes are placed in the annular space formed by the casing and partition wall members to separate air and water using the centrifugal force generated by the swirling, and the separated water droplets are discharged from the system through a drain valve placed in the space below. In the steam/water separator, a filter is filled on the outside of the partition member between the inner end of the partition member and the swirl vane, the filter being denser on the swirl center side than on the swirl outer circumferential side.