JP2013119078A - Water separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the water removal efficiency of a water separator for separating water by swirling the water in gas.SOLUTION: The water separator includes a gas inlet pipe 2; a swirling current generation element 3 formed in the inlet pipe; a disk-like trap cover 12 with a diameter larger than the inner diameter of the inlet pipe 2 and set downstream of the swirling current generation element 3; a trap part 6 having two trap cases 16 which are attached in series to the trap cover 12 and which are formed by integrally forming a cylindrical part 13 having a water draining region 18 with the same outer diameter as that of the trap cover, formed in a portion of the cylindrical wall, and communicated with the outside, a downstream side end wall part 14 downstream of the cylindrical part 13, and a cylindrical second folded part 15 communicated with the cylindrical part 13 downstream of the downstream side end wall part 14; and a water discharge mechanism formed in the outside of the water draining region 18. Owing to this configuration, formation of a welded portion in the trap part which generates the conventional cause of lowering the water removal efficiency can be avoided and the water removal efficiency is improved.

Description

  The present invention relates to a water separator used in equipment such as an air conditioner for aircraft.

  Conventionally, in a nuclear power plant or the like, it is known to provide a water separator in a pipe in order to separate moisture from a gas flow. This water separator is configured to flow a gas flow from below to above, generate a swirling flow, separate water by centrifugal force, and discharge the water to the outside. Moreover, the water separator extended in the horizontal direction is proposed in the water separator provided in the place where it is difficult to take a big space in the vertical direction, such as an air-conditioner for airplanes (refer to patent documents 1).

  According to Patent Document 1, as shown in FIG. 9, the water separator 101 includes an inlet pipe 102 for introducing a gas containing moisture, a swirl flow generating element 103 provided in the pipe of the inlet pipe 102, and a swirl A trap portion 104 that discharges moisture separated by centrifugal force to the outside downstream of the flow generating element 103, and a cylindrical outlet tube 105 having the same diameter as the inlet tube 102 downstream of the trap portion 104.

  The trap unit 104 includes a first trap 108 on the upstream side and a second trap 109 on the downstream side.

  The first trap 108 connects the upstream end wall 110, the downstream end wall 115, the partition wall 111 serving also as the upstream end wall of the second trap 109, and the upstream end wall 110 and the outer edge of the partition wall 111. And a first return portion 114 obtained by extending the inlet pipe 102. A draining region 113 is provided in a certain angle range with the lower end sandwiched at the lower end in the circumferential direction of the cylindrical wall 112, and a punching hole 113a through which moisture passes is formed.

  The second trap 109 includes a partition wall 111 that forms an upstream end wall, a downstream end wall 115, a cylindrical wall 116 that connects the outer peripheral edges of the partition wall 111 and the downstream end wall 115, and an inlet pipe 102. The second return portion 118 has the same inner diameter. A draining region 117 is provided in a certain angular range across the lower end at the lower end in the circumferential direction of the cylindrical wall 116, and a punching hole 117a through which moisture passes is formed.

  Outside the draining regions 113, 117, a trough 119 and a drainage channel 120 are provided for discharging the separated water from the trap unit 104 to the outside of the water separator 101.

  When air containing moisture is introduced into the water separator 101 configured as described above, the air flow is turned into a spiral swirl flow by the swirl flow generating element 103. At that time, moisture contained in the air flows downstream in a spiral while adhering to the inner wall of the inlet pipe 102 by centrifugal force, and the first trap 108 and the second trap having a larger diameter than the inlet pipe provided downstream. Flows into 109.

  The water separated from the swirling flow that has flowed in forms a spiral while adhering to the inner walls of the first trap 108 and the second trap 109 and flows downstream, but the water that has reached the draining regions 113 and 117 along the way is punching holes. 113a and 117a are entered into the trough 119 and discharged from the drainage channel 120 to the outside.

JP 2010-104906 A

  In the water separator 101 described above, the trap portion 104 has a welded structure, and the other components are shaped in consideration of manufacturability. Therefore, the upstream end wall 110, the partition wall 111, the cylindrical wall 112, the first return portion 114, and the partition wall 111, the downstream end wall 115, the cylindrical wall 116, and the second trap 109, which form the first trap 108. The two return portions 118 are connected by welding. Since the components of the trap portion 104 are thin, the weld bead protrudes from the inner surface. Normally, the separated moisture is discharged from the drainage channel 120 through the path Y shown in FIG. 9, but a part of the moisture S is caused by the beads W protruding into the trap at the connection portion between the cylindrical wall 112 and the partition wall 111. Since it scatters in the exit pipe | tube 105 of the 2nd trap 109, water removal efficiency falls. Further, when the inner surfaces of the cylindrical walls 112 and 116 and the wall surfaces of the upstream and downstream end walls are not smooth, the downstream end surfaces of the first return portion 114 and the second return portion 118 and the partition walls 111 and the second return portion 118 are further provided. If the outer edge of the wall and the inner edge of the partition wall 111 and the cylindrical wall 112 are not sharp, the swirling flow is disturbed, and the separated water is scattered downstream, reducing the water removal efficiency.

  In order to solve the above-described problems, the present invention provides an inlet pipe that extends horizontally and introduces a gas containing moisture, a swirling flow generating element provided in the inlet pipe, and an inlet pipe downstream of the swirling flow generating element. A part of the cylinder wall having a straight pipe part provided in the extending direction and a draining region having a cylindrical shape communicating with the downstream side of the straight pipe part and having a larger inner diameter than the inlet pipe and communicating with the outside A trap portion provided on the outer periphery of the straight pipe portion, an upstream end wall portion of the trap portion provided on the outer periphery of the straight pipe portion, a downstream end wall portion provided on a downstream end face of the trap portion, and an inside of the trap portion A first return portion provided by extending the inlet pipe; and a second return portion having an inner diameter provided in the extension direction of the inlet pipe of the downstream end wall portion that is greater than or equal to the inlet pipe and less than the trap portion. In the water separator, the trap portion, the downstream end wall portion, and the Characterized in that a trap case which is integrally formed three components of 2 return part shaped to form a smooth plane sharp outer flaps and the inner flaps.

  Further, by integrally forming the three components by cutting, a trap case having a fine plane, outer cadence, and inner cadence can be formed.

  Furthermore, the trap case can be formed at a low cost by integrating the three components by an adhesive or brazing.

  Furthermore, mass production can be accommodated by integrally molding the three components by casting or forging.

  By making the three components into a trap case integrally formed in a shape having a smooth flat surface and an outer cadence and an inner cadence at a sharp angle, scattering of moisture to the outlet pipe by the weld bead and turbulence of the swirling flow Water removal efficiency can be improved by eliminating the scattering of moisture downstream.

It is a longitudinal cross-sectional view which shows the structure of the water separator of this invention. It is AA sectional drawing of the water separator of this invention. It is a fragmentary sectional view for function explanation of the water separator of the present invention. It is a fragmentary sectional view for function explanation of the water separator of the present invention. It is a trap case part longitudinal cross-sectional view of the water separator of this invention. It is a trap case part longitudinal cross-sectional view of the water separator of this invention. It is a trap case part longitudinal cross-sectional view of the water separator of this invention. It is a trap case part longitudinal cross-sectional view of the water separator of this invention. It is a longitudinal cross-sectional view which shows the structure of a conventional product.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view illustrating the structure of the water separator of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG.

  The water separator 1 according to the present invention is mainly used in an air flow path of an air conditioner for an aircraft, and moisture contained in engine bleed or moisture condensed in the bleed by cooling the engine bleed by a heat exchanger or the like. Used to remove.

  As shown in FIGS. 1 and 2, the water separator 1 according to the present invention extends in a lateral direction and introduces a swirling flow for generating a swirling flow in the inlet tube 2. The element 3 is separated from the swirl flow provided downstream from the swirl flow generating element 3 by the distance L from the downstream end of the straight tube part 4 to the first return part 5 to stabilize the swirl flow. The trap unit 6 collects the collected moisture, the tank 8 for temporarily collecting the collected moisture, and the drainage channel 9 for discharging to the outside.

  The swirling flow generating element 3 is provided with a cylindrical core 10 extending in the axial direction at the axial center of the inlet tube 2, and fins 11 that are in contact with the outer periphery of the core 10 and the inner periphery of the inlet tube 2 are evenly arranged in the circumferential direction. The phase of the fins 11 is changed so as to move from the upstream side of the core 10 to the downstream side.

  The trap portion 6 has an outer diameter D3 on a disc-shaped trap cover 12 having an outer diameter D2 larger than the inner diameter D1 of the inlet pipe 2 provided on the outer periphery upstream from the downstream end of the straight pipe portion 4 by a distance L from the first return portion 5. Is a series of trap cases 16 integrally formed of three components: a cylindrical portion 13 having the same diameter as the outer diameter D2, a downstream end wall portion 14 of the cylindrical portion 13, and a second return portion 15 having an inner diameter equal to that of D1. It is constructed by welding connection.

  The cylindrical portion 13 constituting the trap case 16 is provided with a draining region 18 having a plurality of through holes 17 communicating with the outside in a range of a predetermined angle θ sandwiching the lower end in the circumferential direction. A second return portion 15 is provided in the center of the downstream end wall portion 14 of the cylindrical portion 13 in the downstream direction. The cylindrical portion 13, the downstream end wall portion 14, and the second return portion 15 are integrally cut into a smooth flat surface having the same thickness as that of the inlet pipe 2, a burr, and a sharp round shape with a large radius and no roundness. Has been processed.

  When air containing moisture is introduced into the water separator 1 configured as described above, first, the air flow passes through the fins 11 of the swirl flow generating element 3 to form a spiral swirl flow. Moisture in the air is separated by the centrifugal force, adheres to the inner wall of the straight pipe portion 4, and moves downstream while turning.

  Further, when the swirling flow flows into the trap portion 6, the water separated by the centrifugal force adheres to the inner wall of the cylindrical portion 13 having an enlarged inner diameter and moves downstream while swirling. In the middle of moving downstream, the water is temporarily retained in the tank 8 through the through hole 17 of the draining region 18 and discharged through the drainage channel 9.

  The moisture that has moved downstream along the inner wall of the straight pipe portion 4 moves in the direction of arrow E in FIG. That is, the moisture that has been pushed by the swirling flow and moved to the downstream end of the first return portion 5 moves to the inner wall of the cylindrical portion 13. At this time, the outer cadence of the end surface of the first return portion 5 (see F in FIG. 4) has a sharp dent shape without any processing burrs or scratches, and the inner surface of the cylinder and the hatched portion H of the outer surface (see FIG. 4). ) Is smooth, it can move without splashing water at the end face of the first return portion 5.

  In addition, the trap case 16 is provided in the conventional inner G portion (see FIG. 4) because the three components of the cylindrical portion 13, the downstream end wall portion 14, and the second return portion 15 are integrally cut and formed. There is no weld bead that causes the moisture to scatter to the second return portion 15, and the water removal efficiency can be increased.

  Further, as shown in FIG. 4, the trap case 16 has a sharp caddy shape with no burrs or scratches in the outer caddy K portion, and the inner caddy G portion is processed to have a radius of 0.5 mm or less and hatched. The surface of the part J is processed smoothly. With the above configuration, it is possible to improve the water removal efficiency without disturbing the swirling flow.

  Further, as shown in FIGS. 5 and 6, the trap cases 20 and 21 include a cylindrical portion 13 in which a cylindrical end surface having a smooth inner surface is formed into a sharp outer cadence without burrs and scratches, a second return portion 15, An adhesive 22 or brazing material 23 is used as a trap case 20, 21 for the three constituent elements of the downstream end wall portion 14 in which the inner and outer peripheral end surfaces of a donut-shaped disk having a flat surface are formed into sharp outer edges without burrs and scratches. It is integrally molded so as not to protrude inside.

  Furthermore, as shown in FIGS. 7 and 8, the trap cases 24 and 25 smooth the inner surfaces M, N, and P of the cylindrical portion 13, the downstream end wall portion 14, and the second return portion 15, and the cylindrical portion 13 and the downstream side. A cast product in which the inner quad Q formed by the side end wall portion 14 and the outer quadrant R formed by the downstream end wall portion 14 and the second return portion 15 are formed into an acute shape with a radius of 0.5 mm or less (see FIG. 7) and a forged product (FIG. 8).

  The configuration of the water separator provided by the present invention is as described above, but is not limited to the above and illustrated examples. For example, the trap case 16 may have a single-stage configuration, and may be connected in series with three or more stages.

DESCRIPTION OF SYMBOLS 1 Water separator 2 Inlet pipe 3 Swirling flow generation element 4 Straight pipe part 5 1st return part 6 Trap part 8 Tank 9 Drainage channel 10 Core 11 Fin 12 Trap cover 13 Cylindrical part 14 Downstream end wall part 15 2nd return part 16 Trap case 17 Through-hole 18 Draining area 20, 21 Trap case 22 Adhesive 23 Brazing material 24, 25 Trap case

Claims (4)

  An inlet pipe that extends horizontally and introduces a gas containing moisture; a swirl flow generating element provided in the inlet pipe; a straight pipe portion provided in the extension direction of the inlet pipe downstream of the swirl flow generating element; A trap portion having a cylindrical shape communicating with the downstream side of the tube portion, having a larger inner diameter than the inlet tube and having a hole draining hole communicating with the outside, and a periphery of the straight tube portion An upstream end wall portion of the trap portion provided on the downstream side, a downstream end wall portion provided on a downstream end surface of the trap portion, and a first return portion provided by extending the inlet pipe inside the trap portion. And a second return section having an inner diameter provided in the extending direction of the inlet pipe of the downstream end wall section that is equal to or larger than the inlet pipe and less than the trap section, the trap section and the downstream side The three components of the end wall part and the second return part are smooth flat. When sharp outer water separator, characterized in that flaps shaped to form the inner flaps and provided with a trap case which is integrally formed.   The water separator according to claim 1, wherein the trap case is integrated by cutting.   The water separator according to claim 1, wherein the trap case is integrated by an adhesive or brazing.   The water separator according to claim 1, wherein the trap case is integrally formed by casting or forging.

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