US2783770A

US2783770A - Drainage assembly

Info

Publication number: US2783770A
Authority: US
Inventors: Richter Hans
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-11-29
Filing date: 1952-11-25
Publication date: 1957-03-05
Anticipated expiration: 1974-03-05

Description

March 5, 1957 H. RICHTER DRAINAGE ASSEMBLY Filed Nov. 25. 1952 Unite The invention relates to a drain of condensed water for steam plants in which the condensed water is drained from the steam chamber through a nozzle.

The purpose of the nozzle is based on the known fact that only a small amount of steam, viewed from the weight standpoint can p ass through a nozzle, but a much larger amount of condensed water can pass therethrough. If the nozzle is well adapted to the condensed water to be drained with respect to its passage capacity, and the flow of condensed water remains substantially uniform, the passage of steam can be entirely prevented. Also, under most unfavorable operating conditions, namely where no condensation occurs, only a very small amount of steam can leave.

inasmuch as the nozzle is quite insensitive, and, also drains air and gases, it offers numerous advantages, but it presupposes a correctly selected nozzle width.

Thus, the invention relates to an installation which enables in an exact manner to permit a subsequent test of the nozzle bore, and to also allow a continuous checking of the operation if a change of nozzle unit becomes necessary.

The instant invention materially improves the prior units by providing the collecting chamber for foreign matter with a partition or wall which is so arranged that the lower edge of the partition or wall is at a lower level in the chamber than the inlet and outlet openings as well as the inlet mouth of the nozzle element.

In the the case of horizontally disposed conduits, the partition or wall is vertically mounted within the chamber while in the case of vertically or angularly mounted conduits, the partition is disposed angularly respecting the inlet and outlet openings and in Such installations, it has been found desirable to employ two spaced partitions.

More specifically, the partition is disposed within the chamber forwardly of the nozzle element or between the nozzle element and the inlet so that the waste water ow ing through the assembly must initially pass the partition before reaching the inlet mouth of the nozzle element. To permit the current of condensed water and steam about the lower edge of the partition to be seen, one or more sight glasses are incorporated with the lateral walls of the chamber and preferably opposite to each other, with the center of each sight glass lying opposite the lower edge of the partition. Furthermore, the entrance of the nozzle extends sufficiently far into the chamber to permit the same to be directly viewed through such sight glasses.

nem f 2,783,770 Patented Mar. 5, 1957 'ice or small. Due to the size of the sight glasses, and the relationship of the nozzle with respect to the chamber,

So long as condensed water flows off through the nozzle the operation of the assembly can be continuously watched and make any replacement of the nozzle if the conditions warrant such replacement.

To facilitate the replacement of the nozzle element, the cleaning of the sight glasses, et cetera, a stop valve member may be installed in the inlet to the chamber thereby enabling such repairs or replacements to be elected during the operation of the installation.

If desired, a temperature measuring unit, such as a bimetal thermometer may be installed in the assembly at a point opposite to the outlet end of the nozzle element thereby permitting the temperature of the condensed water to be determined as it ows olf. Since the temperature of the water drops during rising, this unit allows a speedy check of possible plugged conditions in the installation.

Since the bottom of the thermometer support is subjected to the direct action of the water jet emanating from the nozzle, a rapid transfer of heat occurs and a corresponding rapid rise of the thermometer.

The numerous objects and advantages of the present invention will become readily apparent from the ensuing description and the attached drawings.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification, wherein like reference characters indicate corresponding parts in the several views, and in which:

Figure 1 is a vertical sectional view of a drainage assembly embodying one form of the inventive concept.

Figure 2 is a view similar to Figure 1 illustrating a further embodiment of the invention.

Figure 3 is an elevational view, partly in cross-section of another embodiment wherein a stop valve is located in the inlet to the assembly, and,

Figure 4 is a vertical sectional View of the form used in vertical or angularly disposed conduits.

As shown in Figure 1, the assembly comprises a two part housing 10 including an upper member 11, a lower member 12 and securing means 13 providing a leak proof union between the two members. An inlet 14 and an outlet 15 are formed in the upper member 11, the respective elements being coupled to conduits, not shown.

The lower member l2 constitutes a collection chamber 16 for foreign matter and the securing means 13 is such that the lower member may be removed from the upper member for repair, cleaning purposes and the like. Integrally formed with the top wall of the upper part 11 and depending into the chamber 16 is a vertical partition lor wall 17 and it will be noted that lower edge 18 of the partition terminates a substantial distance below the inlet and the outlet 14 and 15 respectively. Also, the edge 18 is of greater perimetric dimensions than the re mainder of the partition and is substantially circular in cross-section. It has been determined that by thus forming the lower edge of the partition, the ilow of the condensed water along the lower edge is particularly quiet.

As depicted in Figure 1, the outlet 15 is provided with an angularly disposed casing in which a nozzle 19 is removably mounted and inlet mouth 20 of the nozzle is located above the lower edge 18 of the partition. A ball 21 is lodged in the outlet of the nozzle and functions as a one way valve element. A manually operated actuator 22 is provided for the ball 21.

Thus, it will be appreciated that the assembly includes but few essential working parts thereby permitting the assembly to be inexpensively manufactured and the repair and replacement costs can be maintained at a minimum. The water entering the assembly through the inlet 14 first iills the chamber 16 and continues to rise until the essere@ level has reached the inlet mouth 20 of the nozzle. The condensed water then enters the nozzle and is discharged in iet form into the outlet opening l5 leading to the discharge conduit.

During operation, the lower edge 108 0f the partitionY 1 1 is deeply immersedvin the water and if the cross, Section of the nozzle is too large not only condensed water but also steam will drain off. The steam cannot enter the mouth 20 directly because of the partition and must p ass between the lower edge 13 and the water level. Thus,`the steam applies a pressure to the water level and the level drops and the greater the amount of steam in the flow, the greater the fall of the water level. A

As hereinbefore mentioned, Vthe housing is provided with sight glasses to permit the inspection of thef interior of thef'assembly and Vsuch sight glasses are shown at 23. 'Ifhe glasses are of such size' and are so located in the housing "walls that the lower edge 1d of the partition and thel mouth end. 20 of the nozzle. 1,9 can be. easily seen, Furthermore, the mid point of each glass 2.3A lies oppo-v site tothe lower end of the partition which means that the current of the condensed water and the steamy about such lower end of the partition can be readily observed. Hence, the drop .of the water level is` readily visible through the sight glasses and the amount of steam in the flow can be quickly determined.

In the modification illustrated in, Figure 2, the same; reference characters are used with thev exception they are, primed. The primary dierence resides in the fact that the nozzle 19' is mounted in the outlet 15' coaxially with the outlet instead of at an angle thereto. Also, the lower edge Y1S of the partition 17 need not extend too deep into the chamber 16 so long as the edge is below the nozzle mouth 20? and the inlet 14 as well as the outlet 15'. Obviously, the steam cannot enter the nozzle directly from the inlet 14.

This modification functions in the same fashion as Figure 1.

AFigure 3 is also quite similar to Figure l and here.

again, the same characters are used although theyy are double primed. In this form, the inlet 14 is provided.

with aV seat. 3i)U for cooperation with a manually operated valve 31 by means oi which the flow into the housing 1,0" can be arrested during the operation of the. installation Also, the nozzle 19" is surrounded by a tubular screen or sieve 32.4 and the condition of the sieve can` be ascer-v tained through the sight glasses 23". l

Mounted above the outlet end of the nozzle 1 9, in a suitableltting 33 removably fixed in the upper wall of the member l1" is a bi-metal thermometer 34 of conT venient type andthe lower'wall of the fitting is closelyv adjacent the outlet of the nozzle i9". Consequently,` the waterA jetAA leaving the outlet of the. nozzle impinges ou the'bottomof the thermometerfittingn andit is possible, to speedily. an accurately determine. the .,temperature.. of'

the waste water.

Furthermore, the partition 17" is not integrally formed Withthe'upper member 1l but rather is.l a separateele.-- ment which is detachably afiixed to the upper member as depicted at 35.

The operation of thisk embodiment is the same.d as. that describedvinconnection with Figuresl and 2. However,

the provision. ofthe valve parts 30 and permitsthe,

flow tobe shut ott to allow the assembly to be. repaired, cleanedhand thelike. s

To adapt the inventionfor use in special installations,

such .as vertically-V and angully arranged conduits, the

form shown in Figure 4 is employed. In this. form, 4 0,

indicates-.the` housing, 41 and 42 the inletV and outlet t0 thehousing respectively, 43 the nozzle in the outlet and 44-i thepartition arrangement generally.

The partition arrangement includes twospaced apart.

partitions t/and, 46 disposed within theY chamber and these partitions are located at an angle of about. 45;

observed that the partition 4S extends in-to the chamber-` obliquely from the inlet side whereas the partition 46 extends obliquely from the outlet side in parallelism to the partition 45 which in efiect defines a circuitous path within the chamber.

The inner end of the partition 45 shown at 47 and the innerend 0f the partition 4,6 denoted 48 extend into the chamber so thatthe free end 47 lies somewhat beyond an imaginary prolongation of the obliquely located wall surface of the inlet 41 whereas the end 48 of the partition 46 is located outside of the imaginary prolongation of the Wall. Surface 0f the Outlet 42- It is believed manifest from this description that the flow in the chamber cannot directly enter the nozzle mouth and this embodiment functions in a manner along the lines previously described.

Hence, in all of the forms disclosed, the.. lower edge of the partition or partitions is below ythe inlet and, the outlet of the chamber as weli as the nozzle. By the pro,-` vision of the sight glasses in the housing walls, the interior of the assembly may be easily and readily viewed toy ascertain the amount of steam present in the flow..

It is. to be understood that the invention is not to be confined to any strict conformity with the showingsA in the drawings, but may be changed or modified so` long as. such changes or modifications mark no material departu-re from the salient features of the invention as ex. pressed in the appended claims.

I claim: A

1. A condensation drainer comprising a housingV hav-` ing a collecting chamber therein, a uid inlet communieating with the chamber, a fluid outlet communicating; with the chamber, a partition within the chamber between the fluid inlet and the fluid outlet extending trans versely of the chamber, a nozzle having an inlet end and anl outlet end, means mounting the nozzle in anrincliued; position relative to the. partition with the outlet end in, direct communication with the fiuid outlet, a ball valve. controlling the outlet end of the nozzle, andV afree end on, theV partition beyond the inlet end of the nozzle, the fluid inlet and the fluid outlet to normally hold the waterlevelwithout loss of vapor at such free end.

2. Ay condensation `drainer as defined in claim` l whered in a temperature indicating device is supported by the housing above the outlet end of ther nozzle so that the water` emanating from.Y the nozzle outlet end. directly impinges upon the temperature indicating device to indi.- v

endin direct communication with the fluid, outlet, a

partitionA within the chamber between the inlet end` of. thel nozzle-and the, fluid in letextending. transversely ofI the., chamber and having-a free endbeyond the inlet end ofthe nozzle,ltheiuidpinlet, and thef'luid outletto nor. mally, h oldthe,water level without loss of vaporv at such. free end, the fluid inlet and fluid outlet being inaxialf alignment andthe inlet andpoutlet ends of the nozzle being inaxial.alignmentwith the fluid` inlet andoutlet.

5; A condensationdrainer comprising -a.housing,having a collecting chamber therein, a fluid inlet communicat-u ing with the chamber, a fluid outlet communicatingwith the'. saidVIV chamber and in axial alignment with the'fluid inlet, a nozzle having an inletl end and an outlet end mounted .in-.thefuid outlet withzsuchends in axial align. meut with .the uid. outlet, and at: least. one partition ex tending into the chamber between the nozzle inlet end and the fluid inlet yat an langle of about 45 degrees with -respect to the fluid inlet and fluid outlet and having a free end terminating beyond the inlet end of the nozzle to normally hold the water level without loss of vapor at said free end of the partition.

1,639,208 Basenau Aug. 16, 1927 6 Vaughn May 28, 1929 Wimmer June 2, 1931 Chevalier Mar. 6, 1934 Staege May 28, 1940 Nagle et al. Apr. l1, 1944 St. Clair Apr. 28, 1953 FOREIGN PATENTS Great Britain of 1912 Switzerland Nov. 16, 1932 Switzerland Dec. 1, 1943