US1423135A - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- US1423135A US1423135A US469591A US46959121A US1423135A US 1423135 A US1423135 A US 1423135A US 469591 A US469591 A US 469591A US 46959121 A US46959121 A US 46959121A US 1423135 A US1423135 A US 1423135A
- Authority
- US
- United States
- Prior art keywords
- steam
- port
- valve
- relief valve
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005192 partition Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
- F24D19/081—Arrangements for drainage, venting or aerating for steam heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/67—Rigid angle couplings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3003—Fluid separating traps or vents
- Y10T137/3021—Discriminating outlet for liquid
- Y10T137/304—With fluid responsive valve
- Y10T137/3052—Level responsive
- Y10T137/3056—Weight or pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4456—With liquid valves or liquid trap seals
- Y10T137/4463—Liquid seal in liquid flow line; flow liquid forms seal
- Y10T137/4471—Valves
- Y10T137/4478—Line condition change responsive
- Y10T137/4493—Pivoted valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8359—Inspection means
Definitions
- This invention relates to steam heating systems.
- valves for use in the so-called vapor heating systems that is to say, where the steam is carried at a very low pressure
- the invention comprises a device for relieving such systems of air and water.
- the object of the invention is to provide a relief valve for use with vapor heating systems of a simple construction, that may be easily manufactured, easily repaired, not likely to get out of order, and eflicient to permit the escape of air from the system, or of water, with a minimum escape of steam.
- the drawing shows a central vertical cross section through a relief valve embodying this invention.
- a boiler In the so-called vapor steam heating sys tems, a boiler is used to generate steam, which is circulated through a system of piping and radiators in a building to be heated.
- the arrangement of piping, etc. is such that a constant supply of the steam or heated vapor, throughout the system, is secured with a very low boiler pressure, the dif ferential being even as low as a few ounces on the two sides of the boiler.
- the lower side of the casing is formed into an extension 7, which is threaded to receive the end of the outlet pipe 8. Ad jacent to this extension 7 the casing is formed into "a cup-shaped portion, which provides a chamber or reservoir 9. In the bottom of this portion of the casing there is a small port closed by a screw 10, by which the reservoir may be drained when desired.
- a partition member 11, which extends entirely across the casing in the middle portionof the reservoir 9.
- the lower edge, marked 12, of this partition is situated at some distance above the bottom of the reservoir 9,so that there is a free passage underneath the lower edge of the partition.
- a small port 18 is provided through the partition. This port is situatediabove the lower sideof a main outlet port formed in the partition or diaphragm walls 14 and 15. A.
- valve disc 16 adapted to seat upon the edges of the opening formed in the walls 14L and 15, and to close the port, is suspended by an arm 17, pivoted on a pin 18, which extends through the casing, or through lugs 19, formed in the upper wall thereof.
- the valve disc 16 is attached to the arm 17 by means of a bolt 30, as illustrated.
- the pin 18 is to the left of the port closed by valve '16, so that the latter normally closes'the port by gravity. 7
- the member 4 being connected to a re.- diator, receives water, air or steam therefrom, and these pass through the inlet port formed by the extension 2 into the main chamber A formed by the casing 1. Air or steam will pass readily through the port 13 to the farside of the partition 11 to the chamber marked B. When the fluid pressure rises beyond a certain predetermined point it will lift the gate valve formed by the disc 16 and arm 17 from its seat, against the force of gravity tending to keep the valve seated, and fluid will escape into the chamber 0, and then pass out the pipe 8. So long as the pressure of air or steam is not sufficient to raise the valve 16 from its seat, there will be no escape from the radiator of either air or steam.
- valve may be provided up to a certain point.
- this relief valve normally permits a constant escape of air or steam, through a restricted opening, so that with the small pressure used only a comparatively insignificant amount of steam an escape through the relief valve. 011 the other hand, should any large amount of water be suddenly delivered to the relief valve, it can flow freely through the trap formed by reservoir 9 and partition 11, and
- valve 16 the port for escape of air or steam will not be restricted.
- a relief valve comprising a casing provided with partitions forming three compartments, an inlet compartment having an inlet port near the upper end thereof, an outlet compartment having an inspection opening adjacent its upper end and a di charge port at its lower end, and an intermediate pressure compartment, the partition bet-ween the pressure and outlet compartments being provided with an outlet port, a valve therefor, the partition between the inlet an d pressurecompartments being spaced from the bottom of the casing to provide a water seal and having a reduced aperture adjacent its upper end, the inlet port, the aperture, the outlet port and inspection opening being in substantial alignment and the aperture being disposed above the centers of said inlet and outlet ports.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
A. W. MILLER.
RELIEF VALVE.
APPLICATION FILED MAYI4, 1921 1 423, 1 35. P e d uly 18, 1922.
WITNES SE S INVENTOR BY mam M ATTORNEYS ill llTE TAT- OFFIQE.
ARNOLD W. MILLER, OF ?I'I'TSIBURGH, PENNSYLVANIA, ASSIGNOR TO 0 HOWARD HOOK, 0F PITTSBURGH, PENNSYLVANIA.
RELIEF VALVE.
Application filed May 14,
To all whom it may concern Be it known that I, ARNOLD W. MILLER, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented anew and useful Improvement in Relief Valves, of which the following is a specification.
This inventionrelates to steam heating systems.
More particularly the invention relates to valves for use in the so-called vapor heating systems, that is to say, where the steam is carried at a very low pressure, and
the invention comprises a device for relieving such systems of air and water.
The object of the invention is to provide a relief valve for use with vapor heating systems of a simple construction, that may be easily manufactured, easily repaired, not likely to get out of order, and eflicient to permit the escape of air from the system, or of water, with a minimum escape of steam.
Other uses and advantages of the invention will appear throughout the following specification.
The drawing shows a central vertical cross section through a relief valve embodying this invention.
In the so-called vapor steam heating sys tems, a boiler is used to generate steam, which is circulated through a system of piping and radiators in a building to be heated. The arrangement of piping, etc. is such that a constant supply of the steam or heated vapor, throughout the system, is secured with a very low boiler pressure, the dif ferential being even as low as a few ounces on the two sides of the boiler. In such an apparatus there is a considerable condensation of the steam, with resulting water in the pipes and radiators, which must be allowed to escape, or to return to the boiler, otherwise it will stop the circulation through the radiators. Likewise, it is necessary to allow air to escape from the radiators, so as to secure the proper circulation of heated vapor.
For these purposes various forms of relief valves are provided. A particularly efiicient and novel one is shown in the drawings. g
It comprises a casing 1, having a threaded extension 2, connected by coupling 3 to the end of a pipe 4, which is suitably connected Specification of Letters Patent.
Patented July 18, 1.922.
1921. Serial No. 469,591.
up to a radiator, as will'be well understood. This joint is of ordinary construction and is not a part of the invention. At the other end of the casing another extension 5 is provided and this is threaded to receive a re movable cap 6. This removable cap gives ready access to the interior of the casing for repairing or removing the valve parts described below.
The lower side of the casing is formed into an extension 7, which is threaded to receive the end of the outlet pipe 8. Ad jacent to this extension 7 the casing is formed into "a cup-shaped portion, which provides a chamber or reservoir 9. In the bottom of this portion of the casing there is a small port closed by a screw 10, by which the reservoir may be drained when desired. On the inside of the casing and depending from the upper wall thereof is a partition" member 11, which extends entirely across the casing in the middle portionof the reservoir 9. The lower edge, marked 12, of this partition is situated at some distance above the bottom of the reservoir 9,so that there is a free passage underneath the lower edge of the partition. Near; its top a small port 18 is provided through the partition. This port is situatediabove the lower sideof a main outlet port formed in the partition or diaphragm walls 14 and 15. A.
It will be understood that the construction illustrated is capable of considerable variation in actual construction, while still 'securing the objects desired. The operation of this device is as follows:
The member 4: being connected to a re.- diator, receives water, air or steam therefrom, and these pass through the inlet port formed by the extension 2 into the main chamber A formed by the casing 1. Air or steam will pass readily through the port 13 to the farside of the partition 11 to the chamber marked B. When the fluid pressure rises beyond a certain predetermined point it will lift the gate valve formed by the disc 16 and arm 17 from its seat, against the force of gravity tending to keep the valve seated, and fluid will escape into the chamber 0, and then pass out the pipe 8. So long as the pressure of air or steam is not sufficient to raise the valve 16 from its seat, there will be no escape from the radiator of either air or steam.
When water drains from the radiator through the inlet port into the asing 1, it is trapped in the reservoir or basin 9, and is held there until the basin is filled to the level of the lower side of the port controlled by valve 16, The partition 11 extending down into this reservoir forms a steam and air trap, as soon as the water rises to the level of the bottom portion 12 of the partition. Thereafter the vapor can only pass through the small leakage port 13, while any amount of water will pass through the basin 9, under the partition 11, without interfering with the air vent, and without emptying the basin, or permitting anything but a mere leakage of air or steam.
After the water has risen above the top of the reservoir 9, that is to say, above the lower portion of the outlet from the basin,
to the point where its pressure is sufficient ing the valve may be provided up to a certain point.
It will also be plainthat this relief valve normally permits a constant escape of air or steam, through a restricted opening, so that with the small pressure used only a comparatively insignificant amount of steam an escape through the relief valve. 011 the other hand, should any large amount of water be suddenly delivered to the relief valve, it can flow freely through the trap formed by reservoir 9 and partition 11, and
out the comparatively large port controlled by valve 16. And furthermore, while this is going on, the port for escape of air or steam will not be restricted.
I claim:
A relief valve comprising a casing provided with partitions forming three compartments, an inlet compartment having an inlet port near the upper end thereof, an outlet compartment having an inspection opening adjacent its upper end and a di charge port at its lower end, and an intermediate pressure compartment, the partition bet-ween the pressure and outlet compartments being provided with an outlet port, a valve therefor, the partition between the inlet an d pressurecompartments being spaced from the bottom of the casing to provide a water seal and having a reduced aperture adjacent its upper end, the inlet port, the aperture, the outlet port and inspection opening being in substantial alignment and the aperture being disposed above the centers of said inlet and outlet ports.
In testimony whereof, I sign my name.
lV. R. MGCARTHY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469591A US1423135A (en) | 1921-05-14 | 1921-05-14 | Relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469591A US1423135A (en) | 1921-05-14 | 1921-05-14 | Relief valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US1423135A true US1423135A (en) | 1922-07-18 |
Family
ID=23864350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US469591A Expired - Lifetime US1423135A (en) | 1921-05-14 | 1921-05-14 | Relief valve |
Country Status (1)
Country | Link |
---|---|
US (1) | US1423135A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5197510A (en) * | 1992-07-16 | 1993-03-30 | Nsertaseal Corporation | Apparatus for checking back pressure |
US20060096639A1 (en) * | 2004-11-05 | 2006-05-11 | Gregory Coogle | Condensate drain tray connector |
-
1921
- 1921-05-14 US US469591A patent/US1423135A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5197510A (en) * | 1992-07-16 | 1993-03-30 | Nsertaseal Corporation | Apparatus for checking back pressure |
US20060096639A1 (en) * | 2004-11-05 | 2006-05-11 | Gregory Coogle | Condensate drain tray connector |
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