US1733999A - Condenser - Google Patents

Description

Get. 29, 1929. W'HSCHUMARTY 1,733,999

CONDENSER Filed Aug. :5, 1926 2 Sheets-Sheet 1 ATTORNEY W. H. SCHUMARTY CONDENSER Oct. 2%, W29.

2 Sheets$hee 2 Filed Aug. 5. 1926 IIIIIIIl;

m. m "A l ATTORNEY Patented Get. 29, 1929 WILLIAM'H. SCHUMARTY, OF 'WOODBRIDGE, NEW JERSEY, ASSIGNOR TO IITOIIRII'HIIII'G-- PATEWPQFFICE TON PUMP AND MACHINERY CORPORATION, OF NEW YORK, Y., A CORPORATION OF VIRGINIA connnnsnn Application-filed August 8, 1926. Serial No. 126,800.

This invention relates to; steam condensers of the surface type and the primary object of the invention is to provide a condenser in which leakage of cooling water, circulated through-the tubes of the condenser, into the steam chamber, and its mixing with the condensate will beprevented.

In steam condensers the temperature of the tubes is constantly fluctuating and the difference between the temperature of thetubes at the top and those at the bottom of a condenser, operating with a'varying load is constantly fluctuating through a wide range. In the present pure water power plant systems, Where boiler feed water is purified to eliminateto the greatest possible extent corrosion and other detrimental action of the boiler tubes and other mechanism employed in the power plant,.it is highly desirable to prevent an the circulating cooling water, which is not treated for purification, from leaking from the tubes into the condensing chamber and contaminating the condensate or boiler feed water.

To overcome such leakage, it is necessary to provide fluid tight connections between the tubesand the heads of the condenser, and in so doing cognizance must be taken of and compensation made for variances in the temperatures inthe condenser, and variances in the expansion and contraction relation of the tubes with the shell or casing of the condenser.

It is an object of the present invention to provide a simple, eflicient and relatively inexpensive condenser construction which will permit fluid tight connection between the tubes and tube heads, allowing movement of one of the tube heads relative to the casing to compensate for the expansion and contraction of the tubes under variances of temperatures in the condenser. a

The present invention embodies a condenser having a rigidly mounted water box and floating or movably mounted tube head which is connected to the condenser shell by a fluid tight expansion joint and also includes means positioned at circumferentially spaced points about the condenser tube head to provide su porting slidable connection between the tu e head and condenser shell for relieving the exv pansion joint of the stress of the weight of the movable or floatingtube head and the tubes which are connected thereto and not interfere with the movement of the tube head under the expansion and contraction of the tubes. 7 I

With these objects in view, the invention consists in various features of construction and combination of parts, which will be first described in connection with the accompanying drawings, showing a-condenser of the preferred form embodying the invention, and the features forming the invention will be specifically pointed out in the claims. 7

In the drawingsi I Figure 1 is a side elevation of a surface condenser constructedin accordance with this invention and having parts thereof broken away. I

Figure 2 is an end view of the/condenser having parts broken away on the'line 22 of Figure 1.

Figure 3 is an enlarged detail through a part of the'condenser and taken on the line 3-3 of Figure 2.

I Figure 4 is an enlarged detail sectionof the condenser taken on the line H of Figure 3 and Figure 5 is a detail sectionthrough a modified form of the condenser. Referring more particularly to the drawings, the condenser comprises a shell 1 in which are located suitable tube heads one of which is shown at 3, it being understood that the other'tube head is mounted within the 1 condenser shell in the approved conventional ered to the hotwell 5 from which it is drawn in the usual manner.

The cooling water for facilitating the condensing action of the exhaust steam passes through the tubes 4 from the Water box 6 to the water box 7 and is returned through certain of the tubes to the Water outlet from the water box 6. In order to provide fluid tight connection between the tubes 4 and the tube heads so as to prevent leakage of the circulatsection I resulting variations in the expansion and contraction of the tubes 4, it is necessary to provide means to compensate for such expansion and contraction so as to prevent rupture of the tubes, or their connections with theitube heads, and in the present invention provision is made for this condition by connecting the tube head 3 with the flange 9 on the condenser shell 1 by an expansion joint 10.

The expansion joint 10 may be made of flexible waterproof material, such as rubber, a composition of rubber and fabric,or any other suitable material, and it is attached, at its edges, to the tube head 3 and the flange 9 by binding rings 11 and 12. Owing to the relatively great weight of tube head 3 and the tubes 4 attached thereto, rollers 14 are positioned at circum erentia'lly spaced points about the condenser shell and they engage angle plates 15. which are attached to the tube head 3 and extend across the circumference thereof and also against angle plates 16 which are attached in any suitable manner to the inner perimeter of the flange 9. Ears 7 17 are formed on the ends of the angle plates 15 to prevent longitudinal movement of the rollers 14. and the outstanding sides 18 of the angle plates 16 are positioned to cooperate with the expansion joint 10 to limit the rolling movement of the rollers 1.41 At the bottom of the condenser a relatively long roller 20 is positioned which engages between angle plates 21 and 22 similar to the angle plates 15 and 16. The relatively large roller 20 is pr0- vided at the bottom of the tube sheet 3 to sup port the tube sheet at this point.

The rollers 14 and 20 provide a movable support between the tube head 3 and the condenser shell so as to relieve the expansion joint 10 of the stresses due to the weight of the tube head, to permit free movement of the tube head under expansion and contraction of the tubes 4. I

In Figure 5 of the drawings a modified form of .the invention is shown in which an annular ring 30 is positioned between the facing flanges 31 of the casing 32 and 33 of the water box 34. The ring 35, of flexible material' which forms the expansion joint between the tube head 36 and the condenser shell 32, is attached to the tube head 36 and the ring 30 by means of binding rings 37 and 38.

Rollers 39 engage the inner perimeter of the rin -30 at circumferentially spaced points an they engage against angle plates 40 fluctuation of the. tempera-.

which are attached to the perimeter of the tube head 36. The outwardly extending sides 41 of the angle plates 40 cooperate with the ring 35 of flexible material, to limit the rolling movement of the rollers 39, the action of which is the same as the action of the rollers 14 in the preferred form of the invention, and in the modified form of the invention as in'the preferred form heretofore described the tubes 42 are connected by fluid tight joints with the tube head 36. The operation of the modified form is similarto the operation of the preferred form of the condenser.

It will be understood that the invention is not tobe limited to the specific construction or arrangement of parts shown but that these mav be modified widely within the invention de ed hv the claims.

What is claimed is:

1. In a condenser. a shell, a tube head. rollers establishing slid able supports between the tube head and shell-to permit movement of the tube head relative to the shell, and an elxnfinsion joint between said tube head and, s e a 2. In a condenser. a shell, a tube head. rollers establishing slidable supports between the tube head and shell to permit movement of the tube head relative to the shell. and angle irons for limiting movement of saidrollers.

3. In a condenser. a shell. a tube head, rollers establishin slidable sup orts between the tube head. and shell to permit movement of thetuhe head relative to the shell. angle irons for limiting movement of said rollers. and an expansion joint between said tube head and shell.

4. In a condenser. a shell. a tube head. tubes having fluid tight connection with said tube head. a fluid tight expansion joint between said tube head and shell. and rollers formina movable supports between said tube head and shell. 1 p 1 5. In a condenser. a shell. :1' tube head. tubes said tube head and shell. and means forming nliloylable supports between said tube head and s e 6. In a condenser. a shell. a tube head having one face'offset laterally with respect to the corresponding surface of the shell, 9. flexible gasket attached to the offset face of the tube head and to said corresponding shell sur face to permit movement of the tube head relative to the shell, and rollers" forming nliloylable supports between the tube head and s e 7. In a condenser, a shell, a tube head having one face ofiset laterally with respect to the corresponding surface of the shell, aflexible asket attached to the offset face of the tube ead and to said corresponding shell surface to permit movement of the tube head relative to the shell, and rollers forming joint between said moveable means and shell, movable supports between the tube head and and rollers forming a su port for said moveshell, and means for limiting movement of able means and permitting supported movesaid rollers.

8. In a condenser, a shell, a water box, a tube head, a ring attached to said shell, and Water box and an expansion joint between said tube head and ring to permit movement of the tube head relative to the shell and water box.

9. In a condenser, a shell, a tube head, a ring attached to said shell, a fluid tight expansion joint between said tube head and ring to permit movement of the tube head relative to the shell, and means forming movable supports between the tube head and rinfi.

10. In a condenser, a shell, 2. water ox, a tube head, a ring attached to said shell, and water box, a flexible gasket attached to said tube head and ring to form an expansion joint between the tube head and ring.

' 11. In a condenser, a shell, a tube head, a ring attached to said shell, a flexible gasket attached to said tube head and ring to form an expansion joint between the tube head and ring, and rollers positioned at ci'rcumfer. entially spaced points about the tube head and between the tube head and ring to provide a movable support between the tube head and ring. I

12. In a condenser, a shell, a water box connected thereto, a tube head, means connecting said tube head and shell to permit movement of the tube head relative to the shell and water box, and movable supports at circumferentially spaced points about the tube head and shell.

13. In a condenser, a shell, a water box connected thereto, a tube head, means connecting said tube head and shell to permit movement of the tube head relative to the shell and water box, movable supports at circumferentially spaced points about the tube head and shell, and means for limiting movementof said movable supports.

14. In a. condenser, a shell, a water boxconnected thereto, a ring attached to the shell and water box, a tube head, means connecting said tube head and ring to permit movement of the tube head relative to the ring,

and movable supports at circumferentially spacedpoints about the tube head and ring.

15. In a condenser, a shell, a water box connected thereto,a ring attached to the shell and water box, a tube head, means connecting said tube head and ring to permit move- -ment of the tube head relative to the ring,

movable supports at circumferentially spaced points about the tube head and ring and means carried by the-tube head for limitin movement of the movable supports.

16. In a condenser, a shell, tubes, moveable means moveable to compensate for expansion and. contraction of sai tubes, an expansion ment thereof.

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