US1573131A

US1573131A - Steam trap

Info

Publication number: US1573131A
Authority: US
Inventors: James L Bernard
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-05-01
Filing date: 1923-05-01
Publication date: 1926-02-16
Anticipated expiration: 1943-02-16

Description

Feb. 16 1926.

J. L. BERNARD STEAM TRAP Filed May 1 fiwemr, /ES A. 566N460,

Patented Feb. 16, 1926.

sn'r oFFIcEi JAMES BERNARD, OF BEAVER, PENNSYLVANIA.

STEAM TRAP.

Application filed May 1,

To all Wit/Hit it may concern:

lie it known that I, Janus ll. Biennium, a citizen of the United States, and resident of Beaver, in the county of Beaver and State of Peru :yivania, have invented certain new and useful Improvements in Steam Traps, of which the foliowing a specification.

This invention. relates to traps and while not limited thereto relatcsmore particularly to traps for use in removing the liquid condensates from steam lines or other similar containers containing gaseous and vaporous fluids.

The principal object of my invention is to provide a trap of this class that will be free of valves or other moving parts and. one that will be entirely automatic in operation.

Another object is to provide atrap of this class having the novel construction and. combination of parts hereinafter described and illustrated in the accompanying draw ngs. q A

ltn the drawings, vertical sectional elevation through a trap constructed in accordance with my invention is shown.

Referring particularly to the drawings the numeral 2 designates the receiving chamher or vessel of the trap as a whole, which is provided with an apertured flanged neck 3 at its upper end forming an inlet. The inlet or neck 3 is adapted to be secured to a steam line t or the like, which is provided with an opening 5 communicating with the aperture or inlet opening in the neck 3.

A discharge chamber or vessel 6 is located alongside of the vessel 2 and is materially shorter than the chamber or vessel 2. The chamber or vessel 6 is provided with an outlet port 7 at the upper end of its side wall, which port is in communication with a vertical tube or conduit 8 which extends downwardly and terminates in a fluid seal box 9 having an overflow spout 10.

The vessels 2 and 6 are provided with frusto-conical bottom walls 11 and 12, re-

spectively, which have centrally arranged ports 14 and 15 which are in communication with the opposite arms 16 and 17 of a relatively small diameter U-tube connecting member, the lower or connecting portion 18 of which is inclined upwardly toward the vessel 6.

The U-tube member is adapted to be filled up to the level indicated by the line AA with mercury or other liquid 20 having a 1923. Serial No. 635,951.

greater specific gravity than the liquid to-be trapped.

W hen the steam or other fluid containing the vapors to form condensates is admitted into the steam line at or other container to which the trap is attached, the pressure will act upon the liquid seal or mercury 20 and force it to assume the approximate position indicated by the lines BB'. As the liquid condensates collect in the receiving chamber or vessel 2, the head on themercury seal 20 will be increased until it has collected in sufiicient quantity to force the sealing liquid to assume the approximate position indicated by theletters HH, at which time the liquid condensates will flow past the seal 20 and into the chamber or vessel 6. When a suflicient quantity of the trapped liquid has entered the chamber or vessel 6 it will flow out through the port 7 and into the seal box 9 from which it will flow through the lip or spout 10 to a waste drain or the I mulates suflicient head the sealing liquid 7 will be forced back to the position H-H, when the trapped liquid will again pass into the vessel 6, this action being continued over and over as often as sufficient head accumulates in the vessel 2.

The chamber 2 is made of large diameter in order to provide a large area to take care of quantities of water which come through the opening 5 from the pipe 4, which at frequent intervals will come in considerable volume. If this chamber 2 were in the form of a pipe of the same diameter as the opening 5 and neck 8 it would be necessary to make it of an impractical length in order to provide sufit cient area to take care of the quantities of Water coming from the pipe 4.

The chamber 6 is made of large diameter in order to permit the mercury 20 to spread out and thus more quickly decrease its head and thereby facilitate the operation of the trap and also to prevent the mercury being carried up to the outlet 7.

Attention is alsocalled to the liquid seal 9 which, besides sealing the conduit 9-also acts as a trap to-catch any mercury that might be carried over from the chamber 6.

The inclined connecting leg-18 of the U tube causes an easier movement of the sealing liquid 20 and lessens the head necessary to break the seal.

I claim 1 1. A trap for removing the liquid condensates from containers containing gaseous and vaporous fluids, comprising a pair of vessels having a reduced communicating passage at their lower ends, one of said vessels being of a greater height than the other and being provided with an inlet opening at its upper end adapted to be in communication with the container from which the condensate is to be removed, the

other of said vesselsbeing provided with an outlet opening in the communicating passage between said vessels, said seal being of greater specific gravity than the condensates, and normally closing said communicating passage. 7

2- A trap for removing the liquid condensates from containers containing gaseous and vaporousfiuids, comprising a pair of vessels having a reduced communicating passage at their lower ends, one of said vessels being of a greater height than the .olther and being provided with an inlet opening at its upper end adapted to be in communication with the container from which the condensate is to be removed, the

other of said vessels being provided with outlet to apoint slightly above the lowest point in said communicating passage, means for forming a liquid seal over the end of said conduit, and a liquid seal in the communicating passage between said vessels, said seal being of a greater specific gravity than the condensates, and normally closing said communicating passage.

3. A trap for removing the liquid condensates from containers containing gaseous and vaporous 'fluids, comprising a pair of vessels having a reduced communicating passage at their lower ends, one of said vessels being of a greater height than the other and being provided with an inlet opening at its upper end adapted to be in communication with the container from which the condensate is to be removed, the other of said vessels being provided with an outlet opening at its upper end, a vertical conduit extending downwardly from said outlet to a point slightly above the lowest point in said comn'iunicating passage, means for forming a liquid seal over the end of said conduit, and a mercury seal in the communicating passage between said vessels, said seal being adapted to normally close said communicating passage.

In testimony whereof I have hereunto signed my name.

JAMES L. BERNARD.