EP0671578A1 - Soupape de réglage pour une ligne de tubes - Google Patents

Soupape de réglage pour une ligne de tubes Download PDF

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Publication number
EP0671578A1
EP0671578A1 EP95810110A EP95810110A EP0671578A1 EP 0671578 A1 EP0671578 A1 EP 0671578A1 EP 95810110 A EP95810110 A EP 95810110A EP 95810110 A EP95810110 A EP 95810110A EP 0671578 A1 EP0671578 A1 EP 0671578A1
Authority
EP
European Patent Office
Prior art keywords
valve
ball
valve according
connection
closure
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.)
Granted
Application number
EP95810110A
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German (de)
English (en)
Other versions
EP0671578B1 (fr
Inventor
Marco Giacomini
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.)
Giacomini SpA
Original Assignee
GIACOMINI Services and Engineering SA
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Filing date
Publication date
Application filed by GIACOMINI Services and Engineering SA filed Critical GIACOMINI Services and Engineering SA
Publication of EP0671578A1 publication Critical patent/EP0671578A1/fr
Application granted granted Critical
Publication of EP0671578B1 publication Critical patent/EP0671578B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the present invention relates to a regulating valve for building heating systems according to the preamble of claim 1.
  • the building heating systems usually consist of a central manifold, to which a plurality of lines, which lead the heating fluid to the individual radiators, are connected. Each strand in turn feeds a plurality of radiators, the number of which can vary from very few units to various dozen such radiators. Furthermore, depending on the design of the building, the number of radiators from each line and thus the heat output to be delivered from each line can be within quite wide limits.
  • a valve is attached to the foot of each line, which performs a whole range of functions, such as: presetting the flow, measuring the liquid flow, shutting off the liquid supply to the line, filling the line - by opening the valve - emptying the line.
  • the valve then has a connection located upwards of the valve seat and a connection located downwards, by means of which it is possible, by means of attachment of a suitable pressure gauge, to determine the pressure difference ⁇ p of the liquid flowing through.
  • a suitable pressure gauge By means of a calibration diagram of the valve provided for this purpose, the pressure difference .DELTA.p can be used to go back to the flow rate of the valve, which enables the valve to regulate the flow rate itself. Carrying out these operations on the individual lines and following the optimization criteria provided for them, you can finally balance and regulate the liquid flow in all lines so that the amount of liquid in the building is distributed according to the required heating requirements.
  • the purpose of the present invention is therefore to eliminate the above-mentioned disadvantages and to propose a balancing valve for heating systems which, in addition to all the application properties of the valves with a slanted seat in the prior art, is also simple to manufacture and therefore not expensive, and of limited space requirement, so that it can be installed in any heating system without any problems.
  • valve with a ball closure the general manufacture of which is known from the prior art, for example in patent specifications CH-A-674405, EP-A-0300403, a balancing valve of simple manufacture and reduced space requirement is achieved.
  • all the main operations can be carried out with simple machine tools (lathes, milling cutters) that are in common use.
  • the space requirement proves to be smaller than in the case of a valve with an oblique seat, since there is no regulating slide in the ball valves which shifts perpendicular to the liquid flow and thus "emerges" from the path of the actual liquid.
  • valve With a ball valve as a regulating valve, there is an inventive fact that the valve must have connection holes with the through-channel of the liquid upwards from the ball valve so that the pressure difference ⁇ p in the liquid flow can be determined and around, with the help of a ratio diagram between ⁇ p and the valve flow rate, based on the flow rate of the valve for each of its setting positions.
  • the claim 7, however, relates to an improvement of the actual ball valve, which thanks to the bottleneck up and down the ball closure of the through-channel, allows to improve the regulating behavior of the valve so that it becomes approximately linear.
  • connection holes for determining the pressure difference ⁇ p are available in accordance with the bottlenecks, the advantage of a greater measurement accuracy of the ⁇ p is achieved thanks to the higher speeds existing at the bottlenecks.
  • Claims 9 and 10 relate to an improvement associated with better thermal insulation of the inventive valve.
  • the precautionary measure of isolating the balancing valve using a housing or clam shell made of insulating material, for example made of pre-pressed polyurethane is successful in practice: however, it is new in combination with a balancing valve with ball lock.
  • Fig. 1, 2 denotes the valve body, made of a suitable, hot-pressed metal, for example brass, and consisting of a first, cylindrical, internally thread-cut part, which forms one of the two connections necessary for the valve 1, for Example the inlet connection 3, assuming that the heating fluid - usually hot water - flows through the channel of the valve from right to left.
  • a suitable, hot-pressed metal for example brass
  • the ball closure 5 of the valve consisting of a hollow metal ball which is provided on two symmetrical sides with two openings 6 and 7 which allow the liquid to flow through it when the valve 1 is in Open position, as shown in Fig. 1, is located.
  • this carries one in a thread 8 screwed sleeve 9, which is also provided with a thread on the inside and forms the second connection of the valve 1, that is to say the return flow connection 10.
  • the ball closure 5 is held tight against the inflow 3 and return flow connections 10 by two elastically deformable seals, for example made of rubber, 11 and 12, which are pressed against the spherical body of the closure 5 by the thread-cut sleeve 9 until it locks into the Body 2 of the valve 1 is screwed.
  • a sealing piece 13 is also provided, consisting of a rubber ring inserted into the circular groove, which is located between the sleeve 9 and the body 2 of the valve 1.
  • the body 2 In its central part, the body 2 then, seen in FIG. 1 above, has a cylindrical extension 14 arranged such that its axis BB is perpendicular to the axis AA of the connections 3 and 10 of the valve 1 and in such a way that it is this axis cuts in the center of the ball lock 5.
  • the axis of rotation 15 of the ball lock 5 In the extension 14, the axis of rotation 15 of the ball lock 5 is in fact supported.
  • the latter is made like a pin, which is provided in its central part with axial and radial, sealed, guide elements, not shown, and is equipped at the two outer ends with two short pins, the lower one in square cross section, which in the upper part of the body of the Ball lock 5 occurs while the other, that of the upper end, is wedged with a worm gear 16, which we will better describe below.
  • the pivoting of approximately 90 ° of the axis of rotation 15 causes the ball lock 5 to rotate and consequently the complete closing of the valve.
  • Numbers 17 and 18 indicate two holes, one upwards 17 and the other downwards 18 of the ball closure 5 in the sense of the liquid passage.
  • the holes 17 and 18 connect the liquid passage channel 19, consisting of the chambers of the inflow connection 3, the ball closure 5 and the return flow connection 10, to the outside.
  • the outflow hole 17 then passes directly through the wall of the inflow connection 3, while the upward hole 18, which is present in the zone in which the tapped sleeve 9 is screwed onto the valve body 2 to form the backflow connection 10, is present first passes through the thread-cut bushing 9 to end in an annular chamber 20 existing between the bushing itself and the valve body 2.
  • the valve body 2 then has a through hole to the outside, preferably on the same plane where the hole 17 is located.
  • the through hole 18 therefore does not, like that 17, consist of a simple opening, but of two holes and an annular chamber 20. Thanks to this provision, it is also possible to use the inside of the return connection 10, consisting of a bush 9 and screwed into the valve body 2 thus positioned in some way with respect to the body 2 itself, to be connected to a connection piece which is firmly connected to the valve body 2.
  • the function of these holes is to use a device provided for this purpose by the degree of opening to determine the position difference ⁇ p in the liquid flow caused by the ball closure 5, in order to go back to the liquid flow rate of the valve 1 thanks to a diagram provided for this purpose, which indicates the relationship between the pressure difference ⁇ p and the flow rate.
  • This type of measurement and calibration of a regulating valve is exactly the same as that which is carried out in the case of the above-described flow regulating valve with an inclined seat, so that further explanations are unnecessary here.
  • the hole 18 can of course also be used for other purposes, such as, for example, to enable the line to be emptied and filled after the valve 1 has been closed.
  • the valve 1 can now be operated manually by means of a lever fixed on the axis of rotation 15 instead of the gear described.
  • this operating mode is not ideal since it does not allow the valve opening 1 to be set sufficiently fine.
  • the ball closure (5) of the valve by means of a rotary mechanism which is able to adjust the angular position of the ball closure (5) of the valve (1) with an accuracy of less than ⁇ 30 ' determine, is operated.
  • This accuracy is important, be it to allow a sufficiently accurate adjustment of the valve flow rate based on the above diagram, as well as to achieve a satisfactory repeatability of the settings.
  • this consists of a worm gear, more precisely, a gear 16 wedged on the axis of rotation 15, and the worm 21 in contact with this gear 16.
  • the details of this worm gear are very good in the Figures 3 and 4 visible, to which reference is made here and in which some further manufacturing details of the mechanism are shown, which is explained below.
  • the reduction ratio of the worm gear mechanism mentioned is, according to the invention, greater than 1:20 in order to achieve a sufficiently fine adjustment option for the valve. This means that the screw 21 must make at least 20 revolutions (in the figure 24 revolutions, since the ratio is 1:24) so that the axis of rotation 15 makes one revolution.
  • the angular position of the gear 16 fastened on the axis of rotation 15 of the ball lock 5 is designated with a code number 22 as the basic setting, that is to say an approximate setting, while the angular position of the screw 21 is designated with a code number 23 as the fine setting.
  • the axis of the worm 21 has a wheel 24 for hand rotation.
  • FIGS 1 and 2 show a practical implementation of the double specification of the valve setting 1 with an approximate and a fine setting: however, it should be understood that this embodiment, which we will now describe, is only one of the many similar practical possibilities and is not restrictive Meaning should be understood, but as a pure example.
  • This manufacture therefore provides that the gear 16 is firmly connected to a segment 25 (visible in section in FIG. 1 and in plan in FIG. 2), which extends to approximately 100 °. Symbols are engraved on the segment, for example numbers from 0-6, which cover a segment arc of 90 °. Every code number or
  • Number corresponds to an exact angular position of the valve closure: for example the zero corresponds to the closed valve position and with 6 that of the completely opened valve (as in FIG. 1).
  • the position of the numbers is referred to in accordance with a window 26 (FIG. 2) provided in the body of the housing cover or heat insulation 27, which window 26 controls the entire valve 1 in a manner and for a purpose as we will specify below. encloses.
  • the window 26 thus gives access to the numbers engraved on the segment 25 and, by means of a pointer 28, the corresponding number from 0 to 6 can be centered exactly in accordance with the window 26.
  • This code number 22 corresponds to the approximate degree of adjustment the valve position 1. In fact, because of its direct coupling with the ball lock 5 and because the segment 25 is only divided into a few numbers, it does not allow more than a relatively imprecise optical setting to be achieved.
  • this code number consists of a ring 29 firmly connected to the wheel 24, on which, in the example of the figure, along the entire circular line and with the markings at a constant distance, Letters from A to L are engraved.
  • the ring 29 is thus divided into 10 divisions, which are shown in accordance with a window 20 with which the housing 27 is also provided.
  • a pointer 31 allows the letters AL to be centered precisely and the screw axis 21 to be set with great angular precision.
  • the wheel 24 can easily be placed in at least four intermediate positions between two consecutive letters, it can be seen from this that the accuracy of the angle adjustment of the ball lock 5 is lower than 1.5 °: 4, that is to say approximately ⁇ 11 ', one Accuracy, which is more than sufficient to grant the regulatory properties of the valve 1 listed as necessary.
  • the rotating mechanism of the axis 15 of the ball closure 5 is provided with an adjustable stop device 32 (FIG. 3), by means of which the maximum flow rate setting of the valve 1 can be determined from the outside. Indeed, it may be useful to set the flow rate of the regulator valve 1 to a certain nominal amount of liquid and then to set this setting so that if, for example, the valve has to be closed in the manner mentioned and the line is emptied by passing the liquid through the outflow hole 18 flows out, the setting position of the valve is found again at the moment of the subsequent filling of the line, thus avoiding having to regulate the flow rate of the valve again.
  • an adjustable stop device 32 FIG. 3
  • Such a stop device 32 is shown in the details of FIG. 3: it mainly consists of an adjustable stop, of a locking ring 33 screwed onto the screw axis.
  • the locking ring is provided with teeth 34 sliding in grooves 35, one of which has supporting bushes, those right 36, is provided, in which the axis rotates. Accordingly, when the worm is rotated, the ring, which cannot rotate because it is held by the teeth 34, screws onto the axle by moving axially to the right when the worm rotation passes to the valve opening (and thus from the closed position shown in FIG. 1 open).
  • Fig. 4 shows another useful detail of the inventive device, which provides that the wheel 24 is attached to the screw axis 21 by a tidy connection, so that the wheel 24 is in such a position at the moment of the calibration of the valve that its code numbers 23 correspond exactly to the diagram information mentioned for the relationship between ⁇ p and the valve flow rate.
  • the valves can be calibrated one after the other during assembly on the basis of a diagram that applies to all valves of the same size: the small, inevitable differences between one valve and the other, caused by minimal manufacturing tolerances, can be achieved by the attachment of the wheel indicator 24 can be compensated for in the exact point according to the diagram.
  • the bottlenecks 38 and 39 are located at the end of the inflow connection 3 or at the beginning of the backflow connection 10, in the sense of the liquid flow through the valve 1.
  • connection holes 17, 18 are provided in accordance with the bottlenecks 38, 39. 1 shows how those holes 17, 18 open into the narrowest points of the bottlenecks 38 and 39 into the channel 19.
  • the entire valve 1 is then enclosed in a heat-insulating housing 27, which consists of at least two separate parts in a central plane and is arranged such that the housing is assembled 27 on the valve 1 already mounted on its inlet and outlet lines is possible (not shown in the figures, but connected to the inflow and outflow closures 10).
  • the housing is indicated by two dashed lines that encircle the entire valve 1. The distance between the two lines indicates that the housing is made of a well-insulating material.
  • the housing 27, as already described, leaves an opening for the operating wheel 24 free as well as the appropriate openings for the connections of the inflow and outflow tubes of the liquid (not shown).
  • the housing 27 serves the purpose of isolating the line regulating valve supplied with hot water in order to prevent heat losses.
  • the valve consists of at least two parts (shells) so that it can be assembled and dismantled (opened) with valve 1 already installed, so that the intended measurements can be carried out, that is to say those that are suitable for the need Tubes can be attached to the holes 17, 18 through connections 40, 41 provided for this purpose.
  • the insulating housing 27 is preferably made of polyurethane foam material with the advantage of being able to obtain shells of any shape and at a favorable price.
  • connections 40 and 41 can be produced as screw connections for fastening flexible tubes and / or can even include a shut-off valve for the water outlet.
  • the advantages of the balancing valve according to the invention are those already mentioned, the simplicity of manufacture and thus the low costs and the small space requirement, as well as the great accuracy of adjustment, which can be set in any position and which in any case with the greatest accuracy thanks to the division of the opening angle of the valve can be repeated with a very fine gradation. All of this simplifies the matching operation of the different strands in a heating system.

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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)
  • Taps Or Cocks (AREA)
  • Vehicle Body Suspensions (AREA)
  • Check Valves (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP95810110A 1994-02-23 1995-02-17 Soupape de réglage pour une ligne de tubes Expired - Lifetime EP0671578B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH525/94 1994-02-23
CH52594 1994-02-23
CH52594 1994-02-23

Publications (2)

Publication Number Publication Date
EP0671578A1 true EP0671578A1 (fr) 1995-09-13
EP0671578B1 EP0671578B1 (fr) 1999-11-03

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ID=4189006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810110A Expired - Lifetime EP0671578B1 (fr) 1994-02-23 1995-02-17 Soupape de réglage pour une ligne de tubes

Country Status (3)

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EP (1) EP0671578B1 (fr)
AT (1) ATE186385T1 (fr)
DE (1) DE59507154D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028670A1 (fr) 1996-12-21 1998-07-02 Ksb Aktiengesellschaft Appareil de robinetterie pour la regulation du debit
WO2008043362A1 (fr) 2006-10-10 2008-04-17 Danfoss A/S Vanne de régulation de débit
DE10319812B4 (de) * 2002-05-03 2010-12-16 Enolgas Bonomi S.P.A., Concesio Kugelventil mit direkt in der Kugel eingebautem Durchflussmesser
CN111809930A (zh) * 2020-07-31 2020-10-23 衡阳泰豪通信车辆有限公司 一种方舱系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10295387B2 (en) 2017-04-25 2019-05-21 Vittorio BONOMI Integrated ball valve and ultrasonic flowmeter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391416A (fr) * 1963-04-26 1965-03-05 Borsig Ag Robinet de passage muni d'un diaphragme de mesure
DE1209381B (de) * 1962-06-11 1966-01-20 Harold Edward Mcgowen Jun Hahn mit auswechselbarer Messblende
GB2073893A (en) * 1980-04-16 1981-10-21 Taco Armaturen Ag Flow control and measuring apparatus
JPS5973726A (ja) * 1982-10-20 1984-04-26 Kansai Electric Power Co Inc:The 流量検出装置
JPS5992313A (ja) * 1982-11-18 1984-05-28 Kansai Electric Power Co Inc:The 流量検出装置
EP0300403A1 (fr) * 1987-07-20 1989-01-25 Giacomini S.p.A. Anneau d'étanchéité profilé pour robinets d'arrêt à tournant sphérique
DE8909284U1 (de) * 1989-08-01 1989-09-14 Theodor Heimeier Metallwerk KG, 4782 Erwitte Gradsitzstrangventil
CH674405A5 (fr) * 1987-11-10 1990-05-31 Steuer Mess Regel Armaturen Gm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209381B (de) * 1962-06-11 1966-01-20 Harold Edward Mcgowen Jun Hahn mit auswechselbarer Messblende
FR1391416A (fr) * 1963-04-26 1965-03-05 Borsig Ag Robinet de passage muni d'un diaphragme de mesure
GB2073893A (en) * 1980-04-16 1981-10-21 Taco Armaturen Ag Flow control and measuring apparatus
JPS5973726A (ja) * 1982-10-20 1984-04-26 Kansai Electric Power Co Inc:The 流量検出装置
JPS5992313A (ja) * 1982-11-18 1984-05-28 Kansai Electric Power Co Inc:The 流量検出装置
EP0300403A1 (fr) * 1987-07-20 1989-01-25 Giacomini S.p.A. Anneau d'étanchéité profilé pour robinets d'arrêt à tournant sphérique
CH674405A5 (fr) * 1987-11-10 1990-05-31 Steuer Mess Regel Armaturen Gm
DE8909284U1 (de) * 1989-08-01 1989-09-14 Theodor Heimeier Metallwerk KG, 4782 Erwitte Gradsitzstrangventil

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Rotgussarmaturen PN 16, Strangregulierventil Multi 200", KREUZSTROMWERK (FIRMENPROSPEKT), March 1991 (1991-03-01), HAGEN *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 183 (P - 296)<1620> 23 August 1984 (1984-08-23) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 208 (P - 302)<1645> 21 September 1984 (1984-09-21) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028670A1 (fr) 1996-12-21 1998-07-02 Ksb Aktiengesellschaft Appareil de robinetterie pour la regulation du debit
US6435207B1 (en) 1996-12-21 2002-08-20 Ksb Aktiengesellschaft Flow regulation fitting
DE10319812B4 (de) * 2002-05-03 2010-12-16 Enolgas Bonomi S.P.A., Concesio Kugelventil mit direkt in der Kugel eingebautem Durchflussmesser
WO2008043362A1 (fr) 2006-10-10 2008-04-17 Danfoss A/S Vanne de régulation de débit
CN101523103B (zh) * 2006-10-10 2011-04-06 丹佛斯公司 流量调节阀
CN111809930A (zh) * 2020-07-31 2020-10-23 衡阳泰豪通信车辆有限公司 一种方舱系统
CN111809930B (zh) * 2020-07-31 2021-08-03 衡阳泰豪通信车辆有限公司 一种方舱系统

Also Published As

Publication number Publication date
EP0671578B1 (fr) 1999-11-03
ATE186385T1 (de) 1999-11-15
DE59507154D1 (de) 1999-12-09

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