US1853189A - Condenser - Google Patents

Description

v A ril 12, 1932. v P. A. BANCEL. 1,853,189

CONDENSER Filed Nov. 29, 1930 Y INVENTOR. PauZZLBancefi.

H15 ATTORNEY- Patented. Apr. 12, 1932 i UNITED STATES,

ATE NTI'Q OFFIE E5 PAUL A. BANGEL, OF MON'ICLAIR, NEVI JERSEY; ASSIGNOR T0 INGERSOLL-RAND COM- .PANY, OFlJEB-SEY'CITY,.NEW JERSEY, A CORPORATION OF NEW JERSEY CONDENSER Application filed November 29, 1930. Serial No. 498,924.. I

This invention relates to condensers, but more particularly to the water box of a condenser of thesurface type.

In structures of the type to which the present invention pertains and in which the inlet water box of the condenser is provided with a side inlet so that the water issuing from the inlet into the water box flows laterally across the ends of the cooling tubes, it has been found that tube ends and their supports thus exposed to the stream of water become rapidly eroded, particularly in the region of the inlet opening of the water box. This condition is, of course, more pronounced in condensers employing cooling water carrying entrained solid matter, such as sand particles, than in apparatuses where the supply of cooling water may be first strained to rid it of any abrasive matter. However, to thus first treat the cooling water is not in all instances practical. It is therefore an object of the present invention to protect the ends of the tubes adjacent the inlet opening of the water box against the erosive action of the water issuing from the inlet opening into the water box.

Another object is to assure a substantiallyuniform velocity of the cooling water through all the cooling tubes.

Other objects will be inpart obvious and in part pointed out hereinafter.

Inthedrawings accompanying the specification and in which similar reference characters refer to similar parts,

Figure 1 is an end elevation of awater box constructed in accordance with the practice of the invention, and

Figure 2 is a plan viewpartly broken away.

Referring more particularly to the drawings, A designates generally a condenser comprising a casing B through which extend tubes C for conveying cooling liquid, such as water, through the casing B tocondense the steam entering the casing at the steam inlet D. j

The ends of the tubes C may be supported in the usual manner by tube sheet Edisposed at the end of the casing B and which tube sheet, as shown, may be interposed between the end of the casing. and a water box F.

Only one water box is shown in the drawings. It is, however, to be understood that the condenser may be provided with another water box at the opposite end of the casingB as is the custom in apparatuses of this type.

For the purpose of this invention, the water box F may be considered as being the inlet water box into which the water may be introduced through an inlet opening Gr in the side of the water box F. In the case where the water box F is separated into a plurality of compartments as for instance, those designated by H and J, each compartment may be provided with a separate inlet opening G, and conduits L leading from a common source of supply may be connected to the inlet openings G to convey cooling water to the compartments.

In condensers employing water heads having side inlets arranged in the manner illustrated in the drawings and which is a usual form of construction, the water issuing from the inlets Gr into the water box flows thereinto at a velocity closely approaching that of the water flowing through the conduits L. Bemg thus discharged into the water box.

the water, and more particularly such water as may have entrained therein solid gritty particles, causes rapid erosion of the ends of the tubes C as well as the tube sheet E.

The erosive action of the water occurs more particularly on those portions of the tubes and the sheet which lie adjacent the inlet'opening or openings G, since it is in this region of the water box, or if constructed as shown, in the compartments H and J that the velocity of the water is highest. Means are accordingly provided to prevent substantially the entire stream of inflowing water from passing over these tubes and to subject the ends of the tubes adjacent the inlet opening G to only the comparatively slight erosive action of that water required by the tubes.

The means illustrated consist of a plurality of bailies,such as those designated by O and P which are arranged in the water box F to divert portions of the incoming stream. of water directly to the tubes near the inlet openingGn. The baffles O and P aresuittil) ably curved so that the water will be deflected towards the tubes without causing unnecessary power loss in the pumping mechamsm.

The baffle O which may be somewhat shorter than the bafiie P is disposed near the side of the inlet opening G to cooperate with the wall of the water box F for forming a passageway Q to the tubes nearest the inlet opening G. The baflie P, which may be disposed in the water box at a point further from the inlet opening G, is spaced somewhat from the bafile O to form between said bafiles a passageway R for conveying the Water to other succeeding rows of tubes.

Preferably the passageways Q and B have their narrowest points near the inlet openings G and said passageways gradually flare in the direction of the tubes in order to prevent an increased velocity of the water through the tubes supplied by the passagean angle to the inlet opening, and curved battles in the water box between the inlet opening and the tubes to divert a ortion of the main stream to the tubes ad acent the inlet opening.

5. In a condenser, a water box having an inlet 0' ening, tubes for conveying water from tie water box and being arranged at an angle to the inlet opening, and baflles in the water box between the inlet opening and the tubes and forming passageways to divert a portion of the stream from the inlet opening to tubes located adjacent the inlet open- 111g.

In testimony whereof I have signed this specification.

PAUL A. BANCEL.

ways Q and R above that of the remaining tubes and which are supplied by the main stream of water flowing into the water box F.

In practice the present invention has been found to function in an unusually efiicient manner. By reason of its adoption the objectionable erosion on any portion of the tubes and tube plates has been practically eliminated. Moreover by providing the passageways Q and R- for supplying water to the tubes located adjacent the inlet openings G the tendency of the water flowing across the inlet ends of said tubes at high velocity to somewhat retard the flow of water through the tubes has been entirely eliminated and, in consequence, substantially uniform velocity of cooling water may be maintained through all the tubes.

I claim 1. In a condenser, a water box having an inlet opening, tubes for conveying water from the water box, and means in the water box to divert the cooling water at the inlet opening and to guide such water to the tubes.

2. In a condenser, a water box having an inlet opening, tubes for conveying water from the water box and being arranged transversely to the direction of flow of water through the water box, and means for guiding water from the inlet opening to the tubes to assure the flow of Water at substantially the same velocity through all the tubes.

3. In a condenser, a water box having an -J inlet opening at one side thereof, tubes for conveying water from the water box and be ing disposed transversely to the direction of flow of water through the water box, and means in the water box to deflect water entering the water boxfrom the inlet opening and to guide such water to tubes adjacent the inlet opening.

4. In a condenser, a water box having an inlet opening, tubes for conveying water from the water box and being arranged at

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