US1662185A - Condensation trap - Google Patents

Description

March 13, 1928.

D. s. GARCIA CCNDENSATION TRAP Filed 31.12.10. 1927 INVENTOR. DA W0 ,6. GARCIA.

A TTORNEYS.

5 43 x4 v3 9 2 I A 3 m w. -i 45;! w f--- o M 2 M H Patented Mar. 13, 1928.

DAVID S. GARCIA, F OAKLAND, CALIFORNIA.

CONDENSAIION TRAP.

Application filed August 10, 1927. Serial No. 211,963.

This invention relates to condensation ejector traps of the type disclosed in a prior patent issued to me Au ust 17, 1926 bearing #1,596,1T2 entitled (londensation ejector a trap.

It is the principal object of the present invention to generally improve the construction and operation of devices of the character referred to whereby to provide an effilfi cient condensation ejector trap capable of continuous operation to drain any amount of condensation rapidly from equipment at any temperature or pressure, and assisting rather than retarding the circulation of the steam,

15 resulting in more heat efficiency and no loss of live steam; the device being designed with no wearing parts, and capable of adjustment to give any desired capacity.

One form which the invention may assume 0 is exemplified in the following description and illustrated by way of example in the accompanying drawings, in which:

Fi 1 is a side elevation of a device embodying the preferred form of my invention. Fig. 2 is a longitudinal section through the device disclosing its construction.

Referring more particularly to the accompanying drawings 1 have disclosed therein a condensation ejector which may be inserted in the exhaust steam line for the removal of condensation from steam processing or heating equipment.

As illustrated the device comprises a cylindrical shell having a removable inlet head 11 at one end and a removable outlet head 12 at its opposite end. As here shown each head is shouldered and provided with an extcriorly threaded cylindrical portion of reduced diameter adapted to threadedly conncct the head to the end of the shell 10.

The interior of the shell is divided into four chambers by means of partition Walls 14, 15 and 16. The chambers in which the shell is divided are a receiving chamber 17,

a spray chamber 18. liquefaction chamber 19 and an ejector chamber 20. It will be noticed that the receiving chamber 17 is at the receiving end of the shell while the ejector chamber 20 is at the outlet end of the shell.

Communication is established between the two through the medium of intermediate devices hereinafter described, so that the vapor and condensate will pass through the inlet head 11' through the device. For this. purpose the inlet and outlet heads 11 and12 are provided with ports 21 and 22 which are tapped so that the device may be interposed in the exhaust steam line of any desired apparatus.

Arranged within the receiving chamber 17 is a pipe 2?) \vhch is arranged at right angles to the axis of the shell. At its lower end this pipe 23 is fitted with a street L 24 which is threaded into a port 25 in the partition wall 14. This port 25 is located contiguous to the outer circun'iference of the partition 14 as illustrated. At the other or upper end of the pipe 23 it is fitted with a non-clogging strainer 26. The position of this strainer 26 makes it necessary that the receiving chamber 17 be almost full of water at all times; thus providing a water seal over the inlet port 21 of the shell. This chamber 17 also acts as a sediment chamber as any sediment passing into the shell through the port 21 cannot pass through the screen or strainer 26 and will collect at the bottom of the chamber 17. This sediment may be removed from time to time through the plugged drain opening 27.

Steam and condensate entering the receiving chamber 17 passes through the strainer 26 downwardly through the pipe 23 and enters a similar pipe 28 arranged in the spray chamber 18. This pipe 28 is also arranged at right angles to the longitudinal axis of the shell and its lower end is placed in communication with the pipe 23 of the receiving chamber 17 through the medium of an elbow 29. The other or upper end of the pipe 28 extends to a point almost on the level with the strainer 26 and is fitted with a conical spray nozzle 30. Hence, steam and condensate passing through the strainer 26 and pipe 23 will pass into the pipe 28 and discharge into the chamber 18 through the spray nozzle 30.

The spraying action taking place causes the steam and water to again mix freely. Consequently the force of the spray causes the water to evaporate rapidly. Th s evaporation of the condensate is accompanied by the disappearance of a large quantity of heat and frequently by a diminution of temperature, which brings a change of sensible into latent heahfand of kinetic into potential energy again causing the vapor and condensate to 't Ym'porarily displace in chamber 18.

A given amount of water in aeroform condition occupies nearly 1700' times as much space under a pressure of one atmosphere as it does in liquid form. That is, one

tially filled with water to form a steam seal, an ejector nozzle arranged within the ejector chamber through which fluid passes into the ejector chamber. and valve means for controlling the discharge of fluid through the ejector nozzle.

Q. A condensation ejector trap comprising a shell having an inlet port at one end an( an outlet port at the opposite end, said shell being interiorly partitioned to provide a receiving chamber and an ejector chamber, a conduit arranged in the receiving chamber for conveying fluid from the receiving chamber, one end of said conduit being open and fitted with a strainer and disposed above the inlet port whereby a water seal will be provided in the receiving chamber, the other end of said conduit being closed in the receiving chamber and directing the fluid through said partition. an ejector nozzle arranged in the ejector chamber to convey fluid into the ejector chamber. and valve means tor controlling the di charge of tluid through said ejector nozzle into the ejector chamber.

3. A condensation ejector trap comprising a shell having an inlet port at one end am an outlet port at the other end, said shell being interiorly partitioned to provide a receiving chamber. a spray chamber and an ejector chamber. a strainer arranged in the receiving chamber and disposed above the inlet port. a spray nozzle arranged in the spray chamber on substantially the same plane as the strainer, fluid conducting means connecting the strainer with the spray nozzle. the position of said strainer and spray nozzle causing a fluid level in the receiving chamber and spray chamber sullieient to maintain a steam seal. said spray nozzle being restricted whereby to retard the low of the tluid through the spray chamber. an ejector nozzle in the ejector chamber through which fluid passes into the ejector chamber from the previous chambers. and valve means controlling the discharge of 'tluid through said ejector nozzle.

4. A condensation ejector trap eoniprising a shell having an inlet port at one end and an outlet port at its opposite end. said. shell being interiorly divided into a receiving chan'iber. a spray chamber. a litpietaction chamber and an ejector chamber. a strainer in the receiving chamber above the inlet port, a spray nozzle in the spray chamber on the plane of the strainer. conduit connecting the strainer with the spray nozzle. said conduit extending below the inlet port and through the partition dividing the receiving chamber from the spray chamber. a tube in the liquefaction chamber communicating at its lower end with the spray chamber contiguous to the bottom of the spray chamber. an orifice in the side of said tube above the center of the liquefaction chamber and directed toward the succeeding partition. a tube in the ejector chamber comn'iunicati[1g at its lower end with the bottom of the liquefaction chamber. said tube having an orifice therein substantially in alignment with the outlet port. and valve means tor controlling the elt'cctive area of said orifice.

5. A condensation ejector trap comprising a cylindrical shell having removable head members at opposite ends. the head member at one end being formed with an inlet port, the head member at the other end being formed with an outlet port. said ports being arranged on the axis of the shell. said shell being interiorly divided by partitions into a receiving chamber. a spray chamber. a. liquefaction chamber and an ejector chamber. the receiving chamber being contiguous to the inlet port and the ejector chamber cont ignous to the outlet port. a strainer within the upper end of the receiving chamber. a conduit arranged at right angles to the axis ot the shell and connected with the receiving chamber at one end. the other end being directed through the adjacent partition. a conduit in the spray chamber arranged in parallelism with the conduit in the receiving chamber. the lower ends of said conduit being connected. the upper end of the conduit in the spray chamber being titted with a restricted spray nozzlc. a conduit in the liquefaction Clltllll' ber arranged at right angles to the axis of the shell and communicating at its lower end with the lower end of the spray chamber. the upper end of the conduit in the liquefaction chamber being closed. said conduit in the liquefaction chamber being termed with an orifice in its side directed toward the succeeding partition and being disposed above the center of the shell. a conduit in the ejector chamber arranged at right angles to the axis of the shell and cominunicating at its lower end with the lower end of the liqnetaction chamber. said conduit in the ejector chamber being formed with an orifice substantially on the axis of the shell and directed toward the outlet port. a valve controlling said orifice. and means extcriorly ot' the shell for operating said valve to control the ett-ective area of said orifice.

DAVID S. GARtlA.

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