EP0130075A2 - Heizgeräte und Ventilanordnung dafür - Google Patents

Heizgeräte und Ventilanordnung dafür Download PDF

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Publication number
EP0130075A2
EP0130075A2 EP84304282A EP84304282A EP0130075A2 EP 0130075 A2 EP0130075 A2 EP 0130075A2 EP 84304282 A EP84304282 A EP 84304282A EP 84304282 A EP84304282 A EP 84304282A EP 0130075 A2 EP0130075 A2 EP 0130075A2
Authority
EP
European Patent Office
Prior art keywords
valve assembly
flow
bypass passage
heating unit
return
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.)
Withdrawn
Application number
EP84304282A
Other languages
English (en)
French (fr)
Other versions
EP0130075A3 (de
Inventor
Roland Brehmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POLYVENTIONS SA
Original Assignee
POLYVENTIONS SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB838317445A external-priority patent/GB8317445D0/en
Priority claimed from GB838325311A external-priority patent/GB8325311D0/en
Application filed by POLYVENTIONS SA filed Critical POLYVENTIONS SA
Publication of EP0130075A2 publication Critical patent/EP0130075A2/de
Publication of EP0130075A3 publication Critical patent/EP0130075A3/de
Withdrawn legal-status Critical Current

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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
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0009—In a two pipe system

Definitions

  • This invention is concerned with improvements in or relating to central heating systems.
  • the invention provides space heating apparatus adapted to be connected in a central heating system of the double line fluid flow type, the apparatus comprising a space heating unit (e.g. a radiator of the hot water type), a flow valve assembly adapted to connect the heating unit to a flow line of the central heating system, and a return valve assembly adapted to connect the heating unit to a return line of the central heating system; each valve assembly comprising a bypass passage series-connectible to the flow or return line respectively, and a branch passage connecting the bypass passage to the heating unit, characterised in that the return valve assembly is separate from the flow valve assembly, and each valve assembly comprises a housing portion which is elongated along an axis (e.g. the axis of a lower horizontal radiator duct) about which the valve assembly is mechanically secured to the heating unit and in which elongated portion is provided the bypass passage.
  • a space heating unit e.g. a radiator of the hot water type
  • a flow valve assembly adapted to connect the heating unit to a flow line of the central heating
  • the axis about which the flow valve assembly is secured to the heating unit is usually, but not necessarily, coaxial with the axis about which the return valve is secured.
  • the invention also comprehends a flow or return valve assembly adapted for use in apparatus according to the invention, the valve assembly comprising a bypass passage, series connectible to the flow or return line and a branch passage adapted to connect the bypass passage to the heating unit, characterised in that the valve assembly comprises a housing portion which is elongated along an axis (e.g. the axis of a lower horizontal radiator duct) about which the valve assembly is mechanically securable to the heating unit, the bypass passage is provided in the elongated portion and extends along said axis; and the branch passage comprises an end portion which is directly mechanically securable to the heating unit, is provided in said elongated housing portion coaxially with the bypass passage, and is isolated from the bypass passage by a fixed transverse barrier.
  • the valve assembly comprises a housing portion which is elongated along an axis (e.g. the axis of a lower horizontal radiator duct) about which the valve assembly is mechanically securable to the heating unit, the bypass passage is provided in the
  • the invention also comprehends a double line central heating system comprising a plurality of heating units, flow valve assemblies, and return valve assemblies according to the invention.
  • the flow and return lines to which the valve assemblies are connected are e.g. of flexible tubing (e.g. of soft thin-walled copper, or steel or of plastics) with all joints (which are e.g. compression joints) readily accessible.
  • the apparatus embodying the invention comprises a plurality of space heating radiators 10 (an upstream one of which is shown in Figure 1), and flow and return lines 12, 14 respectively leading to and from a hot water boiler 15 ( Figure 2).
  • the apparatus also comprises a flow valve assembly 16 mechanically secured in conventional fashion to the right hand side of each radiator 10 and a return valve assembly 18 separate from the flow valve assembly 16; the return valve assembly 18 being mechanically secured to the left hand side of the radiator 10; each valve assembly 16, 18 is secured to the radiator 10 about the axis of the lower horizontal duct 11 of the radiator 10.
  • the valve assemblies 16, 18, connect the radiator to the flow and return lines 12, 14 respectively and the flow paths are indicated in the drawings.
  • the return valve assembly 18 comprises a thermostatically operated main control valve 20, and a throttle valve 22 for flow balancing purposes.
  • the flow valve assembly 16 comprises an isolation valve 24 for radiator isolating purposes.
  • the control valve 20 and the throttle valve 22 are mounted in a housing 23 of integral construction the horizontally extending portion of which is elongated along the axis of the duct 11.
  • the housing 23 comprises a horizontal bore 25 which is co-axial with the duct 11, and a separate horizontal bore 27 which extends in the housing 23 parallel to the bore 25; a third bore 29 extends from the upstream end portion 30 of the bore 25 and is inclined away from the radiator 10 at an acute angle to the bores 25, 27; the bore 29 communicates with the bore 27 as well as with the upstream end portion 30 of the bore 25.
  • the axes of the bores 25, 27, 29 all lie in the same vertical plane.
  • An inlet bore and an outlet bore 31, 33 for the return line 14 lead into the bore 25 at right angles to the bore 25 and their axes also lie in the same vertical plane as the axes of the bores 25, 27, 29.
  • the control valve 20 is secured in an enlarged portion of the bore 27 and comprises a thermostatic head 35 of known type and a conical valve member 37 arranged to move towards and away from a valve seating 39 to vary the flow from the bore 27 into the bore 25 in the operation of the valve assembly, and hence control the operation of the radiator 10.
  • the throttle valve 22 comprises a valve member 41 screwed into a threaded portion 43 of the bore 29 and arranged to move towards and away from a valve seating 45; the valve member 41 is provided with a screwdriver slot 47; the housing 23 is externally threaded around the valve member 41 to receive a screw end cap (not shown).
  • a plug 49 is fixed in the bore 25 between its junction with the bore 29 and the junction with the bore 31; and provides a transverse barrier isolating the upstream end portion 30 of the bore 25, from the remainder of the bore 25 which itself provides a bypass passage 51 in the horizontally extending portion of the housing 23, extending between the bores 31, 33 and series connected thereby to the return line 14.
  • the end portion 30 and the bores 29, 27 provide a branch passage adapted to connect the radiator duct 11 to the bypass passage 51; it will be noted that the end portion 30 is directly mechanically secured to the radiator duct 11.
  • the isolation valve 24 of the flow valve assembly 16 is mounted in a housing 53 of integral construction, the horizontally extending portion of which is also elongated along the axis of the radiator duct 11.
  • the housing 53 comprises a horizontal bore 55 which is coaxial with the radiator duct 11; and a bore 59 which extends from the downstream end portion 60 of the bore 55 and is inclined away from the radiator 10 at an acute angle to the bore 55.
  • a bore 61 leads at right angles from the bore 55 and provides communication between the bores 55, 59.
  • the axes of the bores 55, 59, 61 all lie in the same vertical plane.
  • An inlet bore and an outlet bore 71, 73 for the flow line 12 lead into the bore 55 at right angles to the bore 55 and their axes lie in the same vertical plane as the axes of the bores 55, 59, 61; the bore 71 is coaxial with the bore 61.
  • the isolation valve 24 comprises a valve member 81 screwed into a threaded portion 83 of the bore 59 and arranged to move towards and away from a valve seating 85; the valve member 81 is provided with a screwdriver slot 87; the housing 53 is externally threaded around the valve member 81 to receive a screw end cap (not shown).
  • a plug 89 is fixed in the bore 55 between its junction with the bore 59 and its junction with the bores 61, 71; and provides a transverse barrier isolating the downstream end portion 60 of the bore 55 from the remainder of the bore 55 which itself provides a bypass passage 91 in the horizontally extending portion of the housing 53, extending between the bores 71, 73 and series connected thereby to the flow line 12.
  • the bores 61, 59 and the end portion 60 provide a branch passage adapted to connect the bypass passage 91 to the radiator duct 11. It will be noted that the end portion 60 is directly mechanically secured to the radiator duct 11.
  • a shoulder 96 is provided between the bores 61, 59, and the shoulder 96 extends upwardly from the bore 55 as shown in Figure 1.
  • the throttle valve 22 is pre-set for flow balancing purposes and when it is required to isolate the radiator 10 the control valve 20 is positively closed and also the isolating valve 24: all flow is then necessarily through the bypass passages 91, 51.
  • the bores 31, 33 of the valve assembly 18 are interchangeable as inlet and outlet.
  • the bores 71, 73 of the valve assembly 16 are similarly interchangeable as inlet and outlet.
  • the bore 73 of the valve assembly 16 is connected to the bore 31 of the valve assembly 18 via a throttle 100; it will be realized that should it be desired to expand the number of radiators, it is a simple matter to remove this connection between the bores 73, 31 and to connect up additional radiators.
  • the bores 73, 31 of the terminal downstream radiators can simply be closed with blind fittings, which still leaves the facility for expansion.
  • a conventional flow and return valve can be used for the terminal downstream radiator, but then there is neither continuous circulation nor the facility for expansion, without replacing the valves of the terminal radiator.
  • the tubing is for example from 6 to 22 mm in outer diameter with a wall thickness of about 1 mm; it may be supplied pre-insulated with an outer sleeve of thermal insulating material, for example 2 to 3.5 mm in wall thickness.
  • the copper tubing has for example the following properties:
  • the tubing is for example from 10 to 18 mm in outer diameter with a wall thickness of about 1 mm, and may be plastic-coated against corrosion; again the steel tubing may be supplied pre-insulated with an outer sleeve of thermal insulating material for example 2 to 3.5 mm in thickness.
  • the steel tubing has for example the following properties:
  • the tubing is for example from 10 to 28 mm in outer diameter with a wall thickness from 1.8 to 4.0 mm.
  • the main pipe runs may be within the floor, wall or ceiling, exposed or located within skirting.
  • Figure 3 shows the main pipe runs within the floor with vertical branches extending above floor level for connection to the valve assemblies 16, 18. The absence of pipe connections below floor level will be noted.
  • a compression olive fitting is illustrated in Figure 4 with reference to the bore 31.
  • a pipe 102 is received in the bore 31 and a compression olive 104 surrounds the end portion of the pipe 102.
  • the olive 104 comprises opposed frusto-conical end portions and a cylindrical central portion.
  • One end portion of the olive 104 is engaged by a complementary frusto-conical rim on the bore 31 and the other end portion of the olive is engaged by a corresponding rim on a nut 106. Tightening the nut results in the two rims camming the end portions of the olive into a sealing engagement.
  • valve assemblies 16, 18 can be varied according to floor, skirting or ceiling requirements, and this is facilitated by their radially compact axially elongated configuration.
  • the thermostatically operated valve 20 may be replaced by a manually operable valve, or alternatively the return valve assembly 18 can be replaced by a valve assembly 16' (not shown) resembling the flow valve assembly 16 with the valve 24 of the return valve assembly 16' then being used for flow balancing purposes and the valve 24 of the flow valve assembly 16 replaced by a manually operable main control valve.
  • a hand wheel provided on the isolation valve 24 could provide for instant manual shut off of the radiator over-riding the thermostatically operated valve 20.
  • the return valve assembly of Figure 5 comprises a third bore 529 which extends from the upstream end portion 30 of the bore 25 and is inclined away from the radiator 10 at an acute angle to the bores 25, 27.
  • the bore 529 leads into a bore 600 which extends at right angles from the bore 27 and the bores 529. 600 together provide communication between the end portion 30 of the bore 25, and the bore 27.
  • the bore 600 extends beyond its junction with the bore 529 and the throttle valve member 41 is screwed into the bore 600, being arranged to move towards and away from a valve seating 545.
  • the flow valve assembly of Figure 5 comprises a bore 559 which extends from the downstream end portion 60 of the bore 55 and is inclined away from the radiator 10 at an acute angle to the bore 55.
  • the bore 559 leads into a bore 561 which extends at right angles from the bore 55 and is coaxial to the bore 71; the bore 561 provides communication between the end portion 60 of the bore 55, and the bore 559.
  • the bore 561 extends beyond its junction with the bore 559 and the isolation valve member 81 is screwed into the bore 561 being arranged to move towards and away from a valve seating 585.
  • valve assembly 16 similar to 16' as described above but the flow valve assembly 16 is split into upper and lower valve assemblies 16a and 16b, respectively adjacent upper and lower portions of the radiator connected by a pipe 130.
  • the main control valve 20 (thermostatic or manual) is provided in the upper valve assembly 16a, and the remainder of the flow paths are provided in the lower valve assembly 16b, as indicated by the arrows in Figure 7.
  • the valve assembly 16b ( Figure 7) comprises a pipe connector 132 connected horizontally to the radiator 10 and vertically to the pipe 130.
  • the valve assembly also comprises a body portion 134 abutting a sealing ring 136 between the pipe connector 132 and the body portion 134; the body portion 134 is connected to the flow line 12 by inlet and outlet bores 135, 137.
  • An elongated screw member 138 is screwed into the pipe connector 132 and secures the body portion 134 to the pipe connector 132.
  • a sealing ring 140 is provided between a head 139 of the screw member 138 and the body portion 134. It will be realized that loosening of the screw member 138 permits adjustment of the body portion 134 relative to the pipe connector 132 about the axis of the body portion 134 according to skirting requirements etc.
  • the flow line 12 leads as a branch off a main vertical flow line 212 serving e.g. several floors of a multi-storey building with branch flow lines at each floor; and similarly the return line 14 leads as a branch to a main vertical return line 214.
  • the water flows concurrently along the flow and return lines 12, 14 rather than countercurrently as in Figure 2.
  • the bore 73 of the valve assembly 16 of the right hand radiator 10 is blanked off, as is the bore 33 of the left hand radiator 10.
  • branch flow and return lines may be run off in parallel flow connection with the lines 12, 14 to serve other areas of the building at the same floor level.
  • each return valve assembly 18 is connected to the i return line 14 via a floor heating pipe loop 414 and a common manifold 416.
  • the bores 31 are all blanked off.
  • the floor heating loops 414 are controlled by the control valves 20 and will shut off with the radiators; each loop 414 being controlled with its own radiator 10 independently of the other loops 14 and their radiators.
  • Plastic pipework is normally used for the floor heating loops and accordingly it is convenient to use it also for the radiator connections in the modifications of Figures 9 and 10.

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP84304282A 1983-06-28 1984-06-25 Heizgeräte und Ventilanordnung dafür Withdrawn EP0130075A3 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB838317445A GB8317445D0 (en) 1983-06-28 1983-06-28 Flow systems
GB8317445 1983-06-28
GB838321990A GB8321990D0 (en) 1983-06-28 1983-08-16 Flow systems
GB8321990 1983-08-16
GB8325311 1983-09-21
GB838325311A GB8325311D0 (en) 1983-06-28 1983-09-21 Central heating systems

Publications (2)

Publication Number Publication Date
EP0130075A2 true EP0130075A2 (de) 1985-01-02
EP0130075A3 EP0130075A3 (de) 1985-02-06

Family

ID=27262150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304282A Withdrawn EP0130075A3 (de) 1983-06-28 1984-06-25 Heizgeräte und Ventilanordnung dafür

Country Status (3)

Country Link
EP (1) EP0130075A3 (de)
DK (1) DK314884A (de)
ES (1) ES8507673A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1562007A2 (de) * 2004-01-23 2005-08-10 Herz Armaturen Ges.m.b.H. Anschlussarmatur
EP1607694A1 (de) * 2004-06-07 2005-12-21 Herz Armaturen Ges.m.b.H. Anschlussarmatur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307056A1 (de) * 1973-02-13 1974-08-29 Kaeuffer & Co Gmbh Heizkoerperventilanordnung fuer zweirohr-zentralheizungssysteme

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307056A1 (de) * 1973-02-13 1974-08-29 Kaeuffer & Co Gmbh Heizkoerperventilanordnung fuer zweirohr-zentralheizungssysteme

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1562007A2 (de) * 2004-01-23 2005-08-10 Herz Armaturen Ges.m.b.H. Anschlussarmatur
EP1562007A3 (de) * 2004-01-23 2005-11-16 Herz Armaturen Ges.m.b.H. Anschlussarmatur
EP1607694A1 (de) * 2004-06-07 2005-12-21 Herz Armaturen Ges.m.b.H. Anschlussarmatur

Also Published As

Publication number Publication date
DK314884D0 (da) 1984-06-27
ES533759A0 (es) 1985-09-01
DK314884A (da) 1984-12-29
EP0130075A3 (de) 1985-02-06
ES8507673A1 (es) 1985-09-01

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Inventor name: BREHMER, ROLAND