EP0935101A1 - Durchflussregelventil - Google Patents

Durchflussregelventil Download PDF

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Publication number
EP0935101A1
EP0935101A1 EP99420029A EP99420029A EP0935101A1 EP 0935101 A1 EP0935101 A1 EP 0935101A1 EP 99420029 A EP99420029 A EP 99420029A EP 99420029 A EP99420029 A EP 99420029A EP 0935101 A1 EP0935101 A1 EP 0935101A1
Authority
EP
European Patent Office
Prior art keywords
ring
calibrated
fluid
valve according
adjustment
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Withdrawn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
EP99420029A
Other languages
English (en)
French (fr)
Inventor
René Louis Gential
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.)
Desbordes SA
Original Assignee
Desbordes 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
Application filed by Desbordes SA filed Critical Desbordes SA
Publication of EP0935101A1 publication Critical patent/EP0935101A1/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Withdrawn legal-status Critical Current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
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • F24D19/1036—Having differential pressure measurement facilities

Definitions

  • the present invention relates to fluid flow control valves intended to be mounted in or on a thermal emitter network, such as a heating or air conditioning system to ensure, after a prior conventional differential pressure measurement operation, the setting the fluid flow to the desired value.
  • the present invention relates to a fluid flow control valve. intended to be mounted in or on a thermal emitter network, of the kind heating or air conditioning installation, comprising a main body in which two connected fluid pressure taps are provided respectively upstream and downstream of a calibrated organ, taking into account the direction of flow of the fluid, to form an upstream pressure tap and a downstream pressure tap, and a means for adjusting the flow rate of the fluid.
  • This process for adjusting the fluid flow rate of the installation implements a adjustment device comprising a fitting mounted on a the heating system in the vicinity of the radiator to be balanced and the elbow adjusting the radiator.
  • the fitting has two pressure taps fluid arranged on either side of a calibrated nozzle, that is to say upstream and downstream of the nozzle considering the direction of flow of the fluid, said nozzle being provided in the fitting.
  • Pressure measurement fluid differential is read and read from a differential pressure gauge connected in bypass to each of the two fluid pressure taps.
  • the fluid flow that is to say the balancing of the radiator, is carried out, if that proves necessary, by acting on the integral flow adjustment means of the elbow or adjustment tee, and controlling the operation using the pressure gauge.
  • the object of the present invention therefore aims to remedy the disadvantages of the listed fluid flow control devices previously and to propose a new flow control valve for fluid of reduced volume to be easily integrated in all points of a thermal emitter network whatever its configuration and its location while allowing flow measurement and adjustment particularly precise.
  • Another object of the invention is to propose a new control valve particularly compact fluid flow rate and incorporating all of the organs necessary for adjusting the fluid flow.
  • Another object of the invention is to provide a new valve for adjusting the fluid flow with a reduced number of parts.
  • the fluid flow control valve according to the invention and illustrated in Figures 1 to 4 is intended to be mounted in or on a transmitting network thermal like heating or air conditioning.
  • a transmitting network thermal like heating or air conditioning In the description which follows, reference will be made more particularly to a heating system, it being understood that the flow control valve fluid according to the invention can be advantageously used in any thermal emitter installation or network including a network of pipes connecting devices of the radiator, fan-convector, convector, air conditioner, etc.
  • fluid any type of fluid, for example water, ice or hot.
  • flow control valve of fluid according to the invention can be used in conjunction with all types fluids regardless of their viscosity and properties thermal.
  • the fluid flow control valve illustrated in Figures 1 to 4 has a main body 1, generally made of a metallic material, by example in brass, defining the general envelope of the control valve according to the invention.
  • the main body 1 is formed towards its part lower by a pipe 2, for example of circular section, limited externally by two end pieces 3a, 3b intended to be connected, respectively by an external thread and an internal thread, at a pipeline, for example from a heating installation or directly to an installation radiator.
  • the main body 1 is provided with a central well 4 comprising, at least on part of its length, an internal thread 5 and extends from the line 2, preferably in a substantially perpendicular direction to the axis of the pipe 2, and from the latter.
  • the main body 1 forms a monobloc assembly in which are formed two fluid pressure taps 10, 11 (FIGS. 1 and 2), advantageously provided with internal threads and through advantageously by their lower parts in a reception 12 forming the junction between line 2 and the lower part of the central well 4.
  • the pressure taps 10, 11 are advantageously formed by two tubes 10a, 11a formed in the mass of the main body 1 and extending, for example, according to directions substantially parallel to each other. Tubes 10a, 11a are advantageously inclined relative to the axis of symmetry of the pipe 2.
  • the pressure taps 10 and 11 are intended to serve as connection with a differential pressure gauge, or similar device, view of measuring the differential pressure of the fluid circulating between the two pressure taps 10 and 11.
  • the pressure taps 10, 11 are connected respectively upstream and downstream of a calibrated member 15 ( Figures 3 and 4), the upstream and downstream of the calibrated member 15 being defined in consideration the normal flow direction of the fluid in line 2 and noted by the arrow F (figure 1).
  • the calibrated member 15 is formed by an insert in the main body 1, preferably in the receiving chamber 12, for ensuring the interface between the two pressure taps 10, 11 and the member calibrated 15 and its orifice calibrated 17 on the one hand, and to connect without mixes the fluid circulating in the conduit 2, upstream of the calibrated member 15 to the upstream pressure tap 10, as well as the fluid having passed through the calibrated member 15 leaving downstream of said member, at the downstream pressure tap 11 on the other hand.
  • This feature ensures the interface between the two downstream and upstream pressure zones located on either side of the organ calibrated while ensuring the hydraulic separation of the fluid by through pressure transmission channels produced by the interface.
  • the calibrated member 15 has a series of conformations 16 and a calibrated orifice 17 of inlet defining with the walls of the receiving chamber 12 of the connection passages separated to allow the fluid to be distributed to each of the pressure 10, 11.
  • the second recess 23 is formed on another angular sector of the ring 20, and forms, with the walls of the receiving chamber 12 and a orifice 27 formed in the thickness of the wall 2, the connection passage with the lower part of the tubing 11a associated with the pressure tap downstream 11.
  • the second recess 23 is also advantageously provided at its upper part with an orifice 27 in the form of a notch 27.
  • the ring 20 comprises at as a calibrated orifice 17 a calibrated notch or diaphragm 25 formed at through the wall of the first recess 22, for example from its edge upper (fig 3).
  • the notch 27 can be replaced by a simple longitudinal slit extending over all or part of the height of the ring 20 or by a passage of any shape.
  • the second recess 23 can also be in any form from the moment it ensures the connection between the interior of the calibrated member 15 (or of the ring 20) with the tubing 11a.
  • the recesses 22 and 23 extend over part of the height of the walls 21 to provide a rim 26 at the base of the ring 20 serving to facilitate the centering of the ring 20 and to ensure good sealing of the wall 21 with the receiving chamber 12 in the zones preventing mixing of upstream / downstream pressures.
  • the ring 20 is placed in the reception chamber 12 in combination with a polarizing means (not shown in the figures) to ensure mounting a positioning precise angularity of the ring 20 relative to the passage section of the line 2 and at the lower orifices of the pipes 10a, 11a associated with the pressure taps 10, 11, said orifices having to open into the chamber reception 12 at the level of the conformations 16.
  • the coding means can be conventionally made up of positioning pins extending into the receiving chamber 12.
  • the ring 20 is also associated with blocking means which can be formed by an annular locking flange 30 screwed into the central well 4 via thread 5 to hold ring 20 in place.
  • the blocking means can also include a stop 31 formed by a wall coming from the main body 1 and extending at the bottom of the reception room 12.
  • the flow control valve also includes a flow control means 40, conventionally produced in the form a rod or a needle mounted in the main body 1 and extending in the central well 4.
  • the means of flow control 40 is directly screwed onto the main body 1 by through thread 5 so that the bottom of the means 40 adjusts and extends into the ring 20, substantially according to its main axis of symmetry.
  • the adjustment means 40 can be associated with a device for locking its position after adjustment, formed for example by an adjustment counter-screw 42.
  • the central well 4 is covered by a cap protection 43 screwed onto the upper end of the central well 4.
  • FIG. 5 shows a second variant embodiment of the invention which does not differs from the variant shown in Figures 1 to 4 than by mounting the adjustment means 40.
  • the adjusting means 40 is mounted not on the main body 1, but directly on the ring 20 which then serves as a reception seat. Thanks to this arrangement, it is possible to reduce the number of parts constituting the flow control valve according to the invention.
  • the ring is advantageously made in one metallic material whereas in the first variant, the ring 20 can be made of a plastic type material.
  • the ring 20 is threaded axially so waterproof, via O-rings, in and towards the bottom of the seat receiving 12 to rest against said bottom and is locked in position via a clamping member 45.
  • the adjusting means 40 thus extends at least partly in and against the internal walls peripherals of the ring 20. It is moved thanks to the thread 46 which links it to the rotating part 44 accessible to the operator.
  • the adjusting means 40 do not itself can rotate due to its non-circular guidance in the ring 20.
  • a screw 42 serves to lock the adjusting means 40 in position.
  • a flow control valve comprising on a monobloc piece of reduced size both the gripping devices pressure as well as the flow control means and a calibrated member it is possible to integrate said valve in an extremely small space while allowing the use of a fluid flow control technique proven and precise.
  • the invention also allows, thanks to the role of interface and connection to the calibrated member, to geometrically separate the measurements from pressure, which can thus be removed from the calibrated orifice, signals representative of the pressures which are for one downstream, for the other in upstream of the calibrated orifice. We are thus free from all constraints geometric layout without compromising the quality and measurement of pressures.
  • the operation of the fluid flow control valve according to the invention is as follows: When it is desired to balance a heating or air conditioning installation for example, the operator begins by plugging a differential pressure measuring device, of the pressure gauge type, onto and into the fluid pressure taps 10 , 11 after having previously removed a protective means covering the orifice of the pipes 10a, 11a.
  • the operator then performs the flow measurement at the measurement points and can then directly read the measured value on a gauge dial and compare it to the desired theoretical value. If the measured value differs from the desired theoretical value, it is then necessary to carry out a fluid flow adjustment operation. For this, the operator removes the cap 43 and releases the adjustment means 40 by unscrewing the counter-screw of tightening 42.
  • the operation for adjusting the fluid flow rate then consists in move the adjusting means 40 along the longitudinal axis of the central well 4 in order to adjust the fluid flow in line 2. Such an adjustment is performed by checking the value of the fluid flow rate obtained by direct reading on the pressure gauge dial. The desired value being obtained and read, the operator performs the operations previously written in the direction reverse namely blocking in position of the adjusting means 40 by the counter-screw 42 then closing the cap 43.
  • the notch or diaphragm calibrated 25 intended to achieve the pressure drop can be shaped any and also provided at any location on the valve as soon as its value is perfectly calibrated and that it (it) is correctly positioned in the duct 2.
  • the fluid flow control valve according to the invention is particularly suitable for adjusting the flow rate of installations commonly providing fluid flow rates of the order of 20 liters / hour to 400 liters / hour and can even go up to 1200 liters / hour.

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)
  • Flow Control (AREA)
  • Safety Valves (AREA)
EP99420029A 1998-02-06 1999-02-04 Durchflussregelventil Withdrawn EP0935101A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9801855 1998-02-06
FR9801855A FR2774739B1 (fr) 1998-02-06 1998-02-06 Vanne de reglage de debit de fluide

Publications (1)

Publication Number Publication Date
EP0935101A1 true EP0935101A1 (de) 1999-08-11

Family

ID=9523021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420029A Withdrawn EP0935101A1 (de) 1998-02-06 1999-02-04 Durchflussregelventil

Country Status (2)

Country Link
EP (1) EP0935101A1 (de)
FR (1) FR2774739B1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409121A1 (de) * 1994-03-17 1995-09-21 Gampper Gmbh Warmwasser-Fußbodenheizung
DE29612742U1 (de) * 1995-11-04 1996-10-17 Gampper Gmbh, 67821 Alsenz Ventil mit Voreinstellung der Durchflußmenge für einen Heizkörper einer Warmwasseranlage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409121A1 (de) * 1994-03-17 1995-09-21 Gampper Gmbh Warmwasser-Fußbodenheizung
DE29612742U1 (de) * 1995-11-04 1996-10-17 Gampper Gmbh, 67821 Alsenz Ventil mit Voreinstellung der Durchflußmenge für einen Heizkörper einer Warmwasseranlage

Also Published As

Publication number Publication date
FR2774739A1 (fr) 1999-08-13
FR2774739B1 (fr) 2000-03-17

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