US3170419A - Control device for furnace gases in hot water boilers - Google Patents

Control device for furnace gases in hot water boilers Download PDF

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Publication number
US3170419A
US3170419A US258247A US25824763A US3170419A US 3170419 A US3170419 A US 3170419A US 258247 A US258247 A US 258247A US 25824763 A US25824763 A US 25824763A US 3170419 A US3170419 A US 3170419A
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Prior art keywords
chamber
tubes
heating element
water
spaces
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Expired - Lifetime
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US258247A
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English (en)
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Franzen John
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas

Definitions

  • Another object of the invention is to provide a device in the water heating element assembly per se to concentrate the stream of hot furnace gases to a central narrow istream within the assembly especially at a low fuehng of the boiler.
  • Still a further object of the invention is to provide a .devicetoraise the temperature of the furnace gases at a low'fueling' of the boiler and prior to their entry into the water heating element assembly.
  • the hot waterpips 5 are of a broadly flattened shape as shown in FIGS. 1 and 2, and are arranged in parallelism providinga space 7 therebetween as shown in FIG. 2. Normally all of the hot Water pipes are of the samegauge, and for practical purposes, the width of the spaces 7 is also the same. i d I a When mass-producing boilers of various sizes, the hot water pipe assembly isformed in its, entirely by joining together a numberof single sections, in which case, each section consists of a portion of the lower and upper junction boxes 4 and 6 including the pipebetween the two boxes.
  • the flow control device is disposed within the heating element, assembly-and its chamber 2, and in theembodi-ment shown two guide plates or deflectors 8 and 9 set with synchronized movements of adjustment opposite each other andextending on each side of the pipe assembly for the entire longitudinal directionof the same.
  • the openings of the spaces 7 between the various sections or pipe rows if such are usedand are preferably of the somewhat bent form as shown in FIG. 1.
  • the deflectors 8 and 9 are journalled on shafts 10 and 11 respectively, and each deflector can be turned towards or away from the heating elements by means of a control-handle located, exterlorly of the boiler.
  • the control movement is in opposite directions, and by means of which the deflectors can be simultaneously .adjustedin a'direction towardsor away from the heating element assembly.
  • the deflectors 8 and 9 are in the I. form of a comb, with teeth 15 and-16' respectively, which 7 caseforms a narrow passage for the flow of thefume's.
  • sentially is characterized by the provisionof a device in q the waterheati'ng element assembly j'per se, said device consisting of a number of 'dellectorsfor changing the direction'of the hot furnace gases within the assembly and capable of being adjusted in such'a manner that the jcross area of the stream path within the assembly per se.
  • FIGURE 1 isa View partly inside elevation and' partly. in cross section of theheating elementassem'bly,
  • FIGURE 2- is a fragmentary front viewYof same,'ancl 1
  • FIGURE 3 is a side View partially in elevation and partlyin cross sectionof a hot water boiler'equipped with aiheating element assembly.
  • the heating element asssembly '1 for the-hot water sup ply is disposed in a chamber 2 within, the boiler along side fuel storage-chamber 28 and above a further cham' tion fumes and smoke gasesnenter-the chamber 3, herein referred to as the flame chamber.
  • the upward flowing fumes from'the flame chamber first pass a lower-junction is also possible to guide the same to pass 'a separate heatingarrangement for the supply-of separate dish-or bath her 3 at the side of furnace 29 from which the'combusq
  • the lengthof the teeth is such that when the deflectors are set in their closed position, there remains only a slight opening 17 of predterrnined size,.'or no? opening, between any two teeth set in position from either side, and thus in the first Wide or narrow centrally disposed opening'for the flow Of theifumes inside the heating element assembly can thus be established simply by varying the'arnount of movement. of the teeth.
  • each sectionalheating'element assembly has been pro- .vided'with a fixed outwardly extending deflecting plateor screen 22 and 23 respectively, the length of which i ,v
  • the fixed plates .22 and 23 may be bent; or assume; an angular shape forming a bracket with side pieces 22a and 23a being so positioned that the free ends of the movable plates and 21 will pass along the side pieces.
  • the deflectors thus greatly assist in preventing the fumes from by-passing the heating elements ,at the opening edges between the same and the wall, the fumes will be more and more con ment assembly. In'espective of the fueling of the boiler and thecorresponding throttling of the fumes, this results in the passing fumes giving off their heat content to the elements to an increasing extent while at the same-time achieving a suitable exhaust temperature, a moreeflicient heat exchange rate, and a more favorablegfuel economy.
  • control-means within the: chamber for the hot furnace gasesQsaid water heating element including a plurality of broadly flattened tubes having opposite ends, said tubes being arranged in spaced apart'parallel relationship and being of a width less than the distance between opposite wallmeansof the chamber for providing spaces within'the chamber at each endof the heating element, water dividing and water collecting boxes connected to the opposite ends-of the tubes; said control means including a"deflector plate 7 passing through the chamber are caused to move inwardly mounted in the space ingthe chamber at each end of the heating element intermediatesaid boxes and essentially disposed in the spaces between the tubes so that gases of the tubes adjacent one of the'boxes, then axially of the co-efficient as well as favorable heating economy.
  • the best result can be obtained by combining with the deflector arrangement a set of heat retaining red 'hot glow bodies 26 :of castiiron-or other suitable material which is disposed .in the passage between the furnace and the flame chamber 3.
  • Such glowing bodies are. capable of storing heat even under low fuelingconditions and contribute greatly to increasingthe temperature of the fumes;
  • a 1 pluralityof deflector sets may be arranged one above the other and adapted for manual control as in the embodiment described above, or automaticallycontrolled by heating element sweepingthe surfaces of the tubes in the spaces between the tubes and thence outwardly of'the tubes adjacent the other box, and means movably mountingsaid platesin'said spaces in the chamber for; adjusting the cross-sectional area of the axial path of the gases in the heating element.
  • The'boiler may be equipped-with anoil burner as indicatedat 27 in FIG. 3,:or with the necessary fittings for the installation of such a'burner, thus offering I alternative methods of firing.
  • the teeth 'of'the deflectors are dimensioned with .a certain amount ofplay' in the spaces between the sections.
  • the deflector control arrangements have been. so designed that they are capable of adjustment when'thev boileris in operation. The same can, by'means of their foot holders, be locked in position andthus prevented from being inadvertently moved from a position previous-1 ly'foundto be favorable froma' heat economical point of vieweven if thegl'deflector' plates must be removedfor cleaning orthelike; V g p Although vertical tu'besare preferred, horizontal tubes may be used with'the same being disposed in superposed less than'the distance.
  • each'of said plates being provided with teeth corresponding inv width to the spaces between said tubes and adaptedto be disposed in such spaces so that gases passingthrough'the chamber are caused to movezinwardly of the :tubes adjacent one .of the boxes, then axially of the heating element sweeping the surfacesv of the tubes insuch'spaces and thence. outwardly of the tubes adjacent the other. box, a shaft' in the a space ateachend of the heating element.
  • the heat exchanging assembly as claimed in claim 4 including a stationary screen attached to each end of said heating element and directed towards the deflector plate so that when the deflector plates are in their positions adjacent the heatingelement the free end thereof coacts with the free end of the movable screens.

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  • 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)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US258247A 1962-03-15 1963-02-13 Control device for furnace gases in hot water boilers Expired - Lifetime US3170419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE287262 1962-03-15

Publications (1)

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US3170419A true US3170419A (en) 1965-02-23

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ID=20260898

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US258247A Expired - Lifetime US3170419A (en) 1962-03-15 1963-02-13 Control device for furnace gases in hot water boilers

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US (1) US3170419A (de)
AT (1) AT238904B (de)
GB (1) GB967298A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8819957B1 (en) 2001-08-10 2014-09-02 Taps, Llc Portable air heating system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070223A (en) * 1937-02-09 Heater
US2083745A (en) * 1933-06-27 1937-06-15 Risdon Ivan Furnace
US2540359A (en) * 1949-05-13 1951-02-06 Thomas J Torpy Furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070223A (en) * 1937-02-09 Heater
US2083745A (en) * 1933-06-27 1937-06-15 Risdon Ivan Furnace
US2540359A (en) * 1949-05-13 1951-02-06 Thomas J Torpy Furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8819957B1 (en) 2001-08-10 2014-09-02 Taps, Llc Portable air heating system

Also Published As

Publication number Publication date
GB967298A (en) 1964-08-19
AT238904B (de) 1965-03-10

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