US1474765A - Steam-heated hot-water radiator - Google Patents

Description

Nov. 20 $923 S. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug}, 1921 f \l I 3 Sheets-Sheet l Nov. 20, 1923 11,474,765

5. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug. 9. 1921 3 .Sheets-Shoot 2 Nov. 20, 1923..

s. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug. 5, 8 smote-shoots 31w who; zfu z u QMLMJQ Patented Nov. 2%, 1923:.

SIEGFRIED DEUTSGH, OF VIENNA, AUSTRIA.

STEAM-HEATED HOT- JVA'I'ER RADIATOR.

Application filed August 9, 1921. Serial No. 490,847.

To all whom it may concern:

Be it known that I, Srnornino Dnurson,

mechanical engineer, residing at Vienna,

State of Austria, have invented certain new and useful Improvements in Steamlleated Hot-Water Radiators; and I do hereby declare the following to be a full. clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to steam-heated hot water radiators of the type, in which a system of tubes, open at the bottom, is arranged in a heating unit in communication with the circulating units of the radiator, to which system of tubes thc steam is admitted against the pressure exerted by a watercolumn present in the said heating unit and produced by an overflow arrangement.

The object of this invention is to provide an improved steam-heated hot water radiator of theabove type, and the invention substantially consists in the provision of a communication or bypass conduit leading from the steam admission chamber into the removal pipe for the water ot condensation, the mouth of which conduit, located in the steam admission zone, is situated above't-he maximum high water level. In this bypass conduit a condenser, for instanoe of the coil type, may be interposed.

The top. preferably nozzleshaped orifice oi the bypass conduit is of such dimensions depending unou'the maximum steam pres sure employed, as to ensure that when starting to heat the radiators. the air present in the same can easily escape, Whereas the steam can escape only in small quantities through the aforesaid bypass conduit. the said steam being moreover condensed in the coil.

One formvof carrying my invention into etfectis shown by way of example in the accompanying drawings. in which- Fig. 1 is a section in a vertical plane through one form of the heating unit-0t a steam heated hot water radiator constructed in accordance with my invention,

Fig. 2 is a side elevation, partly in section, showing the entire arrangement-0t the radiator,

Fig. 3 is a plan thereof, and V Fig. 4 is a section'in a vertical plane through the upper part of the heating unit taken on line A of Fig. 1;

In carrying the invention into effect as shown in the drawings, the heating unit 1, of the steam heated hot water radiator communicates with the circulating units 4;, through upper and lower nipple communication apertures 2 and. 3, and forms the terminal unit of the whole system. As is usual in the type of radiators to which my invention relates, a double tube system reaching down into the coldest part of the water is arranged in the heating unit. Each of these double tubes consists of an inner tube 5, and an outer tube 6, arranged at some distance from the inner tube. Between the two tubes an annular space is formed, which is open at the bottom and closed at the top, where it communicates with the steam supply.

The steam supplied through a pipe 8, enters a distributing chamber 9.. and then flows into the annular space 7 through the branches IO-and 11. The supply of steam through the pipe 8, isregulated by a thermostatic device consisting of an expansion member 12, which, in its turn, is composed of a series of expansible units. This thermostat 12 is enclosed in a casing 13, attached steam tight to the front of the heating unit of the radiator, the said thermostat being placed at the lowest point of the heating unit 1, that is to say, it is so arranged that it is influenced by the coldest circulation water and is easily accessible, The thermostat acts upon a valve 14, regulating the steam supply in the usual manner.

From the preceding paragraph it should be evident that the steam enters the lower part of the radiator. passes through the valve 145, and up the vertical section of pipe 8. The steam then passes into the heating unit, and into the chamber 9 as best shown in Fig, 4, which shows the pipe 8 leading into this chamber 9.

In the interior of the heating unit there is arranged an overflow device, which in the present case consists of a tube 15 and is connected to the pipe 16 serving for removing the water of condensation, as shown in Figures 1 and 3.

Before starting. the Whole radiator and tube system are filled with water. As soon as steam enters the heating unit 1, pressure will be exerted against the column of water presentin the heating unit and thus force the water out of the annular spaces 7 of the double tube system. At the commencement of the admission of steam, or with a. very small quantity of steam, the, upper portion of the inner tube 5 is heated. so that the water, contained therein, rises, causing cold er water at the bottom to follow, thus start in I a circulation of the water.

%y one adjustment, the steam admission pressure is so determined by a regulating member 17, that the water filling the interior of the double tube system 5 and 6, is displaced into the proximity of the bottom edge, so that the steam cannot be admitted directly into the water to be heated. Since, on starting, the air filling the steam distribution system would reach the double tube system, the latter would thus be wholly or partly filled with air and thus the object aimedat, viz, a reliable heating, would not be obtained. For this reason therefore I; provide a specially arranged pipe connection 18 between the steam admission or distribrltion chamber 9, above the water level determined by the overflow arrangement and: the pipe 16 for removing the water 01' condensation.

The upper orifice ot the communication pipe 18, forming a bypass, comprises a: nozzle-shaped inserted piece 19, which projects into the upper space of the distributing chamber 9. In the illustrated example this upper space is formed by a partition 20 into an A-shaped pipe, one limb 21 of which. communicates with the steam admission pipe 8, and the other limb 22 communicates with the lower portion of the distributing chamber 9, the inserted piece 19, being located at the apex of the two limbs 21 and 22 (Fig. 4.).

The distributing chamber 9 is closed by a screw cap 23, and the cover 24 closing the heating unit is held down by screws 25 screwed into the cap 23. The orifice 19 ot the bypass pipe 18 is of such dimensions, depending upon the maximum steam pres sure employed that on starting the heating of the radiator, the air may easily escape, whereas the steam can flow through the bypasspipe only in a definite and very small quantity. It is preferred to form this by pass pipe, either outside. or. as shown, within the water, into a coil 26, in which the steam is condensed on its way through the bypass conduit 18. i

With an increased supply of steam the water is forced out of the heating tube system and the heating surface is increased. The water of condensation torn'red during the transference of heat from the steam to the heating tube system, enters the liquid with which: the heating apparatus is filled and thus forms a part of the circulation liquid. Likewise, the steam entering the coil 26 transmits its heat to the surrounding water, so that there are no'iosses of steam.

Another object of the communication con- H d'uit 18 between the steam admission chamber and the pipe for the removal of the water of condensationis to prevent an emptying by suction, of the heating apparatus when a vacuum is formed in the steam supply pipe. Furthermore even at a pressure which is scarcely above zero. a. transmission of steam through the pipe 18 to the pipe for the removal of the water of condensation will take place accompanied by a simultaneous condensation. Thus the liquid with which the radiator is filled will begin to be heated at a period, when such a heating, owing to the very low pressure, cannot be effected by ver tical tubes which are in direct communica tion with the charging liquid. The upward drift or convection force necessary for effecting the circulation in the heating pipes could only be produced with increased pressure, it such a bypass pipe were not provided; another advantage of which consists in the fact that with a very low pressure, and consequently with a very low consumption of heat, the liquid with which the radiator is V filled may be kept hot.

The details of construction of the improved radiator and heating unit may be modified in many ways, without departing from the scope of my invention.

I claim:

1. In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow pipe leading upward from the bottom of said unit, a pipe for the removal of the water of condensation, and a lay-pass conduit forming a connection between the top portion of the steam tube system and the pipe for the removal of the water of condensation. i

2. In a heating device of the type described. the combination of'a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow unit leading upward from the bottom of said unit, a pipe for the removal of the water of condensation, a by-pass conduit forming a connection between the top portion of the steam tube system and a pipe for the removal of the water of condensation, and a device Fer condensing by surface action steam flowing through the by-passconduit.

In a heating device of the type described. the combination of a heating unit.

adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow tube leading upward from the bottom of said heating unit, a pipe forthe removal of the water of condensation, and a loy-pass conduit forming a connection between thetop portion of the steam tube system and the pipe for the removal of the water of condensation, the end of the lay-pass conduit lying within the top portion of the steam tube system being provided with a restricted orifice.

i, In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged I vithin said heating unit, an overflow pipe leading upward from the bottom of said heating unit, a pipe-tor the removal of the water oi condensation, a bypass conduit forming a connection between the top portion of the steam tube system and the pipe for the removal of the water of condensation, and a device for condensing by surface action steam flowing through the by-pass conduit the end of the bypass conduit lying within the top portion of the steam tube system being provided with a restricted orifice.

In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube systemopen at the bottom and arranged within said heating unit, an overflow pipe leading upward from the bottom of said heating unit, a pipe for the removal of the water of condensation, a by-pass conduit forming a connection between the top portion or" the steam tube system and the pipe for the removal of the water of condensation. and a device for condensing steam flowing through said by-pass conduit, said condensing devicebeing connected to the pipe for the removal of the water of condensation, the end of the bypass conduit lying within the top portion of the steam tube system being provided with a restricted orifice.

6. In a heating device of? the type described, the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow tube leading upward from the bottom of said heating unit, a pipe for the removal of the water of condensation, a by-pass' conduit forming a connection between the top por- 'tion. of the steam tube system and the pipe "for the removal of the water of condensation, and hot water radiator elements connected to the upper and lower portions of the heating unit.

7. In a heating device of the type de scribed. the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow unit leading upward from the bottom of said unit, a pipe for the removal of the water of condensation, a bypass conduit forming a connection between the top portion of the steam tube system and a pipe for the removal of the water of condensation, a device tor condensing by surface action steam flowing through the bypass conduit, and hot water radiator elements connected to the upper and lower portions of the heating unit.

8. In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube system opening at the bottom and arranged within said heating unit, an overflow tube leading upward from the bottom of said heating unit, a pipe for the removal of the water of condensation, and a by-pass conduit forming a connection between the top portion of the steam tube system and the pipe for the removal of the water of condensation. the end of the bypass conduit lying vithin the top portion of the steam tube system being provided with a restricted orifice, and hot water radiator elements connected to the upper and lower portions of the heating unit.

9. In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit, an overflow pipe leading upward from the bottom of said heating unit, a pipe for the removal of the water of condensation, a by-pass conduit forming a connection between the top portion of the steam tube system and the pipe for the removal of the water of condensation, and a device for condensing by surface action steam flowing through the bypass conduit, the end of the by-pass conduit lying within the top portion of the steam tube system being provided with a restricted orifice, and hot water radiator elements connected to the upper and lower portions of the heating unit.

10. In a heating device of the type described, the combination of a heating unit adapted to be filled with water, a steam tube system open at the bottom and arranged within said heating unit. an overflow pipe leading upward from the bottom of said heating unit, a pipe for the removal of the water of condensation, a bypass conduit forming a connection between the top portion of the steam tube system and the pipe for the removal of the water of condensa tion, and a device for condensing steam flowing through said by-pass conduit, said condensing device being connected to the pipe for the removal of the water of condensation, the end of the by-pass conduit lying within the top portion of the steam tube system being provided with a restricted orifice, and hot water radiator elements connected to the lower and upper portions of the heating unit.

In testimony whereof I aflix my signature.

SIEGFRIED DEUTSCH. VVit-nesses Srncrnrnn NEUTRA, YOHANN LUCY.

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