EP0252252A2 - Appareil de production d'eau chaude sanitaire - Google Patents

Appareil de production d'eau chaude sanitaire Download PDF

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Publication number
EP0252252A2
EP0252252A2 EP87107095A EP87107095A EP0252252A2 EP 0252252 A2 EP0252252 A2 EP 0252252A2 EP 87107095 A EP87107095 A EP 87107095A EP 87107095 A EP87107095 A EP 87107095A EP 0252252 A2 EP0252252 A2 EP 0252252A2
Authority
EP
European Patent Office
Prior art keywords
water heater
valve
heater according
burner
valve body
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Withdrawn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
EP87107095A
Other languages
German (de)
English (en)
Other versions
EP0252252A3 (fr
Inventor
Thomas Pütz
Günter Möbus
Ernst Söhnchen
Tadeus Kruszewski
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 DE19868613312 external-priority patent/DE8613312U1/de
Priority claimed from AT0343486A external-priority patent/AT388438B/de
Application filed by Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Publication of EP0252252A2 publication Critical patent/EP0252252A2/fr
Publication of EP0252252A3 publication Critical patent/EP0252252A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/087—Regulating fuel supply conjointly with another medium, e.g. boiler water using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details

Definitions

  • the valve controlling the fuel throughput is opened by the water switch to an extent corresponding to the respective water throughput.
  • the object of the invention is to ensure a sufficient fuel throughput even in the event that the fuel supply has been throttled manually and arbitrarily to a minimum partial output and at the same time only the minimum water throughput flows to the heat exchanger, so that the control valve runs at the minimum degree of opening.
  • the fuel throughput supplied to the burner for starting it in a service water heater of the type described at the outset is dimensioned at least to a throughput sufficient to ignite the burner, regardless of this throttling.
  • This goal-oriented dimensioning can be implemented constructively in a variety of ways within the scope of the invention.
  • the valve body of a valve arranged in the fuel supply line is assigned a flexible, but stiffening under axial pressure, which if necessary consists of a straight, in the stiffening state, the course limiting the adjustment path of the valve body can be deflected into a curved or angled course which releases the full adjustment path.
  • Such a flexible organ can consist, for example, of a spring which is supported in the straight state on the one hand on the valve housing and on the other hand against the valve body, the pitch of which is selected so that its turns come to lie stiffening directly against one another at a predetermined minimum length forced by axial pressure .
  • a parallel branching can be provided in the fuel supply line to the burner in series with the control valve, which has a throttle adjustable to a partial output of the burner in one branch and a bypass valve in the other branch.
  • This bypass valve can then be adjusted by means of the water switch arranged in the cold water supply line from an open position in the inoperative state to a closed position corresponding to the operating state.
  • the burner 1 of a domestic water heater shown in FIG. 1 is supplied with fuel from the fuel supply line 5 via a fuel supply line 2, in which the control valve 3 for controlling and regulating the fuel supply is located, via a chamber 4.
  • the transmission member 25 converts the rotary movement of the rotary handle 20 and the threaded spindle 23 into a pushing movement of the wedge-shaped intermediate member 19 with stroke limitation.
  • the part 15 of the actuator 14 which is directly adjustable by the water switch 10 also moves proportionally in the water supply line 7 in the water supply line 7 when tapping hot water at the tap 9 and thereby presses upwards against the lower wedge surface 26 (FIGS. 2-5) of the wedge-shaped intermediate piece 19 .
  • This intermediate piece 19 has in the retracted state (FIG. 2) - ie only when the partial output of the burner 1 is set - at a certain distance 28 from the lower end 18 of the actuator part 16 and only begins after one certain period of time and with increasing throughput against the lower end 18 to push the part 16 upwards.
  • F ig.2 accordingly shows the position of the actuator parts 15 and 16 and the wedge-shaped intermediate piece 19 at a set partial power before a water flow and
  • FIG. 3 shows the position after the start of the tap.
  • F shows the setting of the intermediate piece 19 to full power before a water throughput and 5 shows the position after the start of dispensing.
  • the wedge-shaped intermediate piece 19 retracted between the parts 15 and 16 of the actuator 14 prevents the control valve 3 controlling the fuel supply to the burner 1 from throttling the fuel supply to the burner 1 to a maximum extent and ensures that the burner 1 is started with a sufficient amount for the ignition Amount of fuel that may be greater than the amount of fuel required for the lowest possible partial output of the burner 1.
  • control valve 3 At the start of the tap, the control valve 3 is either closed or, as soon as it is open, permits a fuel throughput of 40 to 100% of the full burner output. the jump from zero to 40% is obtained when switching on by an S chnappermechanismus in this control valve.
  • the intermediate piece 19 is at the beginning of the dispensing process in its right end position according to FIG. 2, which corresponds to the minimum partial output of the burner 1, its upper wedge surface 27 has a distance 28 from the lower end 18 of the actuator part 16.
  • An actuation of the control valve 3 and thus a release of 40% of the burner output takes place - according to FIG. 3 - only when the water throughput in the water supply line 7 or the tap line 8 has reached a size which is the actuator part 15 enabled via the wedge-shaped intermediate piece 19 to lift the upper part 16. If the stroke is too short, the control valve 3 is not actuated.
  • the wedge-shaped intermediate piece 19 is in its left end position, as shown in FIGS. 4 and 5, which corresponds to the maximum burner output (nominal output)
  • the upper wedge surface 27 is already at the bottom at the lower end 18 of the upper actuator part 16 and this upper part 16 immediately actuates the control valve 3 when tapping, the part of the spindle 23 carrying the intermediate piece 19 being pivoted in the joint 24.
  • the burner is set to a minimum partial output and only a minimal water throughput is tapped, this requirement may be absent, and in this case the start of the burner is prevented according to the invention.
  • valve shown in FIGS. 6 and 7, in cooperation with a water switch, not shown, of a water heater according to the invention prevents a partial output throughput from occurring before the burner is ignited, which is insufficient for igniting and which would result in the unburned fuel.
  • the lowermost part of the actuator 14 of the water switch carries a plate 29 to which a step of the housing 32 is assigned as a stop 30.
  • This helical spring 34 is anchored at one end in the valve housing 32, is guided transversely to the actuator 14 by a freely pivotable movable guide 35 and can be supported coaxially against the valve body 36 with its free end opposite the anchoring in the straight state (FIG. 1).
  • This spring 34 has sufficient inherent rigidity to maintain a straight course, supported by the guide 35, in the undeflected state, coaxial with the valve body 36.
  • valve body 36 which is influenced by a compression spring 37, is adjustable in the line path of the fuel supply line 2 by means of a manually operable pressure handle 20 and, with its peripheral recesses 38 and 39, determines the full load or partial output throughput in the fuel supply line 2, in accordance with its respective position according to FIG .6 or Fig. 7.
  • this valve body 36 can only be adjusted from the full load position (FIG. 6) to the partial power position (FIG. 7) by means of its push handle 20 when the burner has already been ignited, i.e. only after the water switch has taken effect and the actuator 14 has moved upwards into the position according to FIG. 7.
  • the spring 34 in its straight course coaxial with the valve body 36 according to FIG. 6, blocks the adjustment of the valve body 36 to the partial power position according to FIG.
  • another, e.g. articulated organ can be provided, which stiffens under the action of axial pressure to a predetermined minimum length, but can be deflected if necessary into an angled or curved course.
  • the process water heater shown in FIG. 8 again comprises the heat exchanger 6, which can be heated by means of a burner 1 fed via a fuel supply line 2.
  • a manually adjustable throttle are arranged, and in 42 the branch 43 a bypass valve 44 in the branch 41st Upstream of this parallel branch 40, the fuel supply line 2 can be blocked by means of a valve 45.
  • the throttle 42 is arbitrarily adjustable to a partial output of the burner 1, the bypass valve 44 is adjusted via a connection 47 by the water switch 10 of the water heater, which is arranged in the water supply line 7 leading to the heat exchanger 6 and in turn also adjusts the control valve 3 via a connection 48 , as soon as a water flow through the heat exchanger 6 is started or ended by means of the nozzle 9 in the nozzle 8.
  • valve 45 and the bypass valve 44 are initially open, the throttle 42 is set to a selected partial output and the control valve 3 is closed by the heat exchanger 6 and water switch 10 in the absence of a water throughput.
  • the two branch lines 41 and 43 are axially assigned to one another within a housing 32, running parallel to one another, with the control valve 3 coaxial with the water switch 10 and proceed from a common chamber 49 which is connected to the fuel supply line 2 via the valve 45 connected.
  • the bypass valve 44 is also arranged coaxially with the water switch 10 and the actuator 14 of the control valve 3 actuated by it, the valve body 12 thereof he wears.
  • connections 47 and 48 according to the diagram in FIG. 8 are advantageously embodied in this fitting jointly by the actuator 14 which can be actuated by the water switch 10.
  • the bypass valve 44 works mechanically completely independently of the partial output settings of the control valve 3 and the throttle 42; it has no connection to these settings.
  • the only connection to the actuator 14 consists of the valve body 50 arranged thereon and consisting of an elastomer; mechanical jamming is excluded.
  • Dosing can be achieved by upstream nozzles or by adjusting the valve stroke.
  • the amount of fuel additionally required for over-ignition can be measured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
EP87107095A 1986-05-15 1987-05-15 Appareil de production d'eau chaude sanitaire Withdrawn EP0252252A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19868613312 DE8613312U1 (de) 1986-05-15 1986-05-15 Ventil
AT0343486A AT388438B (de) 1986-12-24 1986-12-24 Gasbeheizter wassererhitzer
DE8704253 1987-03-21

Publications (2)

Publication Number Publication Date
EP0252252A2 true EP0252252A2 (fr) 1988-01-13
EP0252252A3 EP0252252A3 (fr) 1988-09-21

Family

ID=27149427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107095A Withdrawn EP0252252A3 (fr) 1986-05-15 1987-05-15 Appareil de production d'eau chaude sanitaire

Country Status (1)

Country Link
EP (1) EP0252252A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269443A (en) * 1992-07-01 1994-02-09 Caledonian Control Technology Control for water heating systems
AT403415B (de) * 1995-04-26 1998-02-25 Vaillant Gmbh Wasserheizanlage mit einem von einem brenner beaufschlagten primärwärmetauscher
EP1353126A3 (fr) * 2002-04-11 2004-06-23 Vaillant GmbH Armature à gaz à régulation hydraulique
CN108151989A (zh) * 2018-03-21 2018-06-12 吉林大学 数控卧式伺服刀架刚性检测装置及使用方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE910585C (de) * 1951-08-01 1954-05-03 Richard Huelzer Gasbeheizter Fluessigkeits-Durchlauferhitzer
DE3242253A1 (de) * 1982-11-15 1984-05-17 Harri 8264 Waldkraiburg Zahn 2-stufen-durchlauf-gaswasserheizer (heisswassertherme)
FR2569283B1 (fr) * 1984-08-16 1988-09-09 Sdecc Regulateur de debit d'eau reglable pour mecanisme de commande a membrane differentielle pour appareil de production d'eau chaude par le gaz
DE3715134A1 (de) * 1986-05-15 1987-11-19 Vaillant Joh Gmbh & Co Brauchwasserheizer
DE8613312U1 (de) * 1986-05-15 1986-07-03 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Ventil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269443A (en) * 1992-07-01 1994-02-09 Caledonian Control Technology Control for water heating systems
AT403415B (de) * 1995-04-26 1998-02-25 Vaillant Gmbh Wasserheizanlage mit einem von einem brenner beaufschlagten primärwärmetauscher
EP1353126A3 (fr) * 2002-04-11 2004-06-23 Vaillant GmbH Armature à gaz à régulation hydraulique
CN108151989A (zh) * 2018-03-21 2018-06-12 吉林大学 数控卧式伺服刀架刚性检测装置及使用方法
CN108151989B (zh) * 2018-03-21 2023-09-19 吉林大学 数控卧式伺服刀架刚性检测装置及使用方法

Also Published As

Publication number Publication date
EP0252252A3 (fr) 1988-09-21

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Inventor name: SOEHNCHEN, ERNST