DK176638B1 - Control valve - Google Patents

Control valve Download PDF

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Publication number
DK176638B1
DK176638B1 DK200700999A DKPA200700999A DK176638B1 DK 176638 B1 DK176638 B1 DK 176638B1 DK 200700999 A DK200700999 A DK 200700999A DK PA200700999 A DKPA200700999 A DK PA200700999A DK 176638 B1 DK176638 B1 DK 176638B1
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DK
Denmark
Prior art keywords
valve
flow
control valve
differential pressure
flow channel
Prior art date
Application number
DK200700999A
Other languages
Danish (da)
Inventor
Ole Joergensen
Original Assignee
Frese As
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 Frese As filed Critical Frese As
Priority to DK200700999A priority Critical patent/DK176638B1/en
Priority to PCT/DK2008/000181 priority patent/WO2009006893A1/en
Application granted granted Critical
Publication of DK176638B1 publication Critical patent/DK176638B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/028—Controlling a pressure difference
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
    • G05D16/0661—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane characterised by the loading mechanisms of the membrane

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)

Description

DK 176638 B1DK 176638 B1

REGULERiNGSVENTILControl valve

Den kendte teknik 5 Den foreliggende opfindelse angår en reguleringsventil, hvor ventilen kan indstilles til et flow, som holdes konstant uafhængig af trykændringer i det system, som ventilen er indbygget i.BACKGROUND OF THE INVENTION The present invention relates to a control valve in which the valve can be adjusted to a flow which is kept constant independent of pressure changes in the system in which the valve is built.

Reguleringsventilen kan med fordel anvendes i væskebårne anlæg som for ek-10 sempel i central- eller fjernvarmeanlæg, men i øvrigt overalt, hvor man er interes seret i at have en forudindstillelig ventil, som holder den gennemstrømmende væskemængde konstant.Advantageously, the control valve can be used in liquid-borne systems such as central or district heating systems, but otherwise wherever interested in having a preset valve which keeps the flow of liquid constant.

Et eksempel på en ventil, som er beskrevet I den kendte litteratur, findes i 15 GB1164237 (Self). I ventilen af Self styres væskegennemstrømningen ved hjælp af en drejeknap, der er forbundet med en kanal, som kan skubbes ind og ud af væskegennemstrømningskanalen i ventilen.An example of a valve described in the prior art can be found in GB1164237 (Self). In the valve of Self, the fluid flow is controlled by a knob connected to a channel which can be pushed in and out of the liquid flow channel in the valve.

Ventilen af Self gør det således muligt at styre mængden af væske, der strøm-20 mer gennem ventilen. Hvis der imidlertid sker ændringer i trykket i det system, som ventilen er indbygget i, vi! det ikke længere være muligt at regne med den forindstillede væskemængde.The valve of Self thus makes it possible to control the amount of fluid flowing through the valve. However, if the pressure changes in the system in which the valve is built, we! it will no longer be possible to count on the preset amount of liquid.

Et andet eksempel på en ventil, som er beskrevet i den kendte litteratur, findes i 25 US5174332 {Yokoyama). Ventilen af Yokoyama er en konstant flowventil, hvor væskegennemstrømningen forsøges holdt på et konstant niveau. Ventilen omfatter en spindel.Another example of a valve described in the prior art can be found in US 5174332 (Yokoyama). The valve of Yokoyama is a constant flow valve in which the liquid flow is attempted to be kept at a constant level. The valve includes a spindle.

Ligesom med de andre kendte ventiler er det med ventilen af Yokoyama ikke 30 muligt at sikre, at den gennemstrømmende væskemængde holdes på et kon stant niveau, seivom der sker trykændringer i systemet.As with the other known valves, with the valve of Yokoyama, it is not possible to ensure that the flow of liquid is kept at a constant level, even if pressure changes occur in the system.

2 DK 176638 B12 DK 176638 B1

Et tredje eksempel på en ventil, som er beskrevet i den kendte litteratur, findes i US6725880 (Liu). Ventilen af Liu omfatter et ventilhus, en differenstrykregulator og en forindstillingsindretning. Denne ventil kan således reguleres. Opbygningen af ventilen er imidlertid ikke særlig enkel, og der ønskes en mere simpel kon-5 struktion af en ventil, der kan reguleres.A third example of a valve described in the prior art can be found in US6725880 (Liu). The valve of Liu includes a valve housing, differential pressure regulator and a preset device. This valve can thus be regulated. However, the construction of the valve is not very simple and a simpler construction of a regulatable valve is desired.

Formålet med opfindelsenThe object of the invention

Den foreliggende opfindelse afhjælper problemerne med den nærmest!iggende 10 kendte teknik ved at tilvejebringe en reguleringsventil, hvor flowet gennem ven tilen kan holdes konstant uafhængigt af uforudsete trykændringer.The present invention solves the problems of the prior art by providing a control valve where the flow through the vein can be kept constant independently of unforeseen pressure changes.

Opfindelsen angår således en reguleringsventil til brug I væskebårne anlæg som for eksempel central- eller fjervarmeanlæg eller andre anlæg, hvor der er behov 15 for at forudindstille væskegennemstrømningen ti! et konstant niveau, som ikke ændrer sig, selvom der sker uforudsete trykændringer i anlægget. Reguleringsventilen omfatter et ventilhus med en tilgangsside og en afgangsside forbundet med en gennemstrømningskanal. I ventil huset er placeret en rotationssymmetrisk differenstrykregulator og en forindstiilingsindretning overfor hinanden 20 på hver sin side af gennemstrømningskanalen på en fælles akse. Differenstryk- regulatoren der står i forbindelse med gennemstrømningskanalen mod tilgangssiden via en rørforbindelse, er placeret i en udboring i gennemstrømnings-kanalen, og den opretholder et konstant differenstryk mellem tilgangssiden og afgangssiden ved hjælp af en fjederkraft.The invention thus relates to a control valve for use in liquid-borne plants, such as central or spring heating systems or other plants, where there is a need to preset the liquid flow to 10. a constant level that does not change even if unforeseen pressure changes occur in the system. The control valve comprises a valve housing with an inlet side and an outlet side connected to a flow duct. In the valve housing is arranged a rotationally symmetrical differential pressure regulator and a presetting device facing each other 20 on each side of the flow channel on a common axis. The differential pressure regulator connected to the flow channel towards the inlet side via a pipe connection is located in a bore in the flow channel and maintains a constant differential pressure between the supply side and the outlet side by means of a spring force.

2525

Forindstillingsindretningen benyttes til forindstilling af den gennemstrømmende væskemængde og omfatter et drejegreb, en spindel, et ydre cylindrisk ventilelement og et indre ventilelement. Det ydre ventilelement har en silds, der peger i indiøbsretningen, og hvorigennem væsken kan strømme. Det indre ventil-30 element er placeret i det cylindriske ventilelement, således at venfilelementernes flader er placeret i tæt anlæg mod hinanden, hvor det indre ventilelement har et 3 DK 176638 B1 nedre skørt med en kurveform. Samtidig er ventileiementet forbundet til dreje-grebet ved hjælp af spindlen, således at man ved at dreje på drejeknappen kan ændre åbningen i forindstillingen.The presetting device is used for presetting the flow rate of fluid and comprises a pivot handle, a spindle, an outer cylindrical valve member and an inner valve member. The outer valve member has a herring pointing inwards and through which the liquid can flow. The inner valve member 30 is located in the cylindrical valve member so that the faces of the vein members are located in close contact with one another, the inner valve member having a lower skirt with a curve shape. At the same time, the valve element is connected to the swivel handle by means of the spindle, so that by turning the knob the opening in the preset can be changed.

5 Ved at forsyne forindstillingsindretningen med markeringer på drejegrebet kan man se den gennemstrømmende væskemængde ved en given position af drejegrebet.5 By providing the presetting device with markings on the swivel handle, one can see the flow of liquid at a given position of the swivel lever.

Ved at den fælles akse danner en spids vinkel i forhold til gennemstrømnings-10 kanalen, mindskes stress i ventilen, og sammen med det indre ventillegemes skørt fås en effektiv forindstiliingsindretning.By forming the joint axis at an acute angle with respect to the flow duct, stress in the valve is reduced and, together with the skirt of the inner valve body, an effective pre-setting device is obtained.

Tegningen 15 I det følgende vil udførelseseksempler af opfindelsen blive forklaret nærmere under henvisning ti! tegningen, hvor fig. 1 viser en reguleringsventil, og 20 fig. 2 viser de enkelte ventilkomponenter separat.Drawing 15 In the following, exemplary embodiments of the invention will be explained in greater detail with reference to FIG. FIG. 1 shows a control valve, and FIG. 2 shows the individual valve components separately.

Beskrivelse af udførelseseksemplerneDescription of the Examples

Med henvisning til fig. 1 ses et tværsnit af reguleringsventilen. Regulerings-25 ventilen 1 omfatter et ventilhus 2, hvori der er placeret en differenstrykregulator 3 og en forindstiliingsindretning.Referring to FIG. 1 shows a cross section of the control valve. The control valve 1 comprises a valve housing 2 in which is located a differential pressure regulator 3 and a pre-setting device.

Væskegennemstrømningen foregår i en gennemstrømningskanal, der forbinder tilgangssiden, hvor væsken løber ind i ventilen, med afgangssiden, hvor væsken 30 iøber ud af ventilen.The liquid flow takes place in a flow channel connecting the inlet side where the liquid enters the valve with the outlet side where the liquid 30 flows out of the valve.

4 DK 176638 B14 DK 176638 B1

Forindstiilingsindretningen omfatter et drejegreb 14, en spindel 9, et ydre cylindrisk ventilelement 6 og et indre ventilelement 7. Det ydre ventilelement 6 har en slids, hvorigennem væsken kan strømme. Det indre ventilelement 7 er placeret i det cylindriske ventilelement 6 og har et nedre skørt 8.The presetting device comprises a swivel handle 14, a spindle 9, an outer cylindrical valve member 6 and an inner valve member 7. The outer valve member 6 has a slot through which the liquid can flow. The inner valve member 7 is located in the cylindrical valve member 6 and has a lower skirt 8.

55

Skørtet 8 vil give den nederste de! af det indre ventilelement 7 en kurvet udformning, således at længden af ventilelementet vil have en angulær afhængighed.The skirt 8 will give the lower ones! of the inner valve member 7 is a curved configuration such that the length of the valve member will have an angular dependence.

Når det indre ventilelement 7 er placeret i det ydre 6, kan det drejes omkring sin 10 akse.When the inner valve member 7 is located in the outer 6, it can be rotated about its axis 10.

Det indre og ydre ventilelement samvirker, således at når det indre ventilelement 7 roteres, vil skørtet 8 drejes og åbne eller lukke for slidsen i det ydre ventilelement 6. Drejningen kan foregå kontinuert mellem den lukkede og åbne yderstil-15 ling.The inner and outer valve members cooperate so that as the inner valve member 7 is rotated, the skirt 8 will rotate and open or close the slot of the outer valve member 6. The rotation can take place continuously between the closed and open outer positions.

Det indre ventilelementet 7 er forbundet til drejegrebet 14 ved hjælp af spindlen 9. Dette betyder, at indstillingen af den gennemstrømmende væskemængde sker ved at dreje på drejegrebet 20The inner valve member 7 is connected to the pivot handle 14 by means of the spindle 9. This means that the adjustment of the flowing fluid quantity is effected by turning the pivot handle 20

Forindstiilingsindretningen har markeringer på drejegrebet, der viser den gennemstrømmende vandmængde ved en given position af drejegrebet. Markeringerne kan eksempelvis bestå af en eller flere rette linjer på drejegrebet i kombination med tal eller symboler på ventilhuset.The pre-setting device has markings on the pivoting handle showing the flow of water at a given position of the pivoting handle. The markings may, for example, consist of one or more straight lines on the swivel handle in combination with numbers or symbols on the valve body.

2525

Det er muligt at have markeringer på ventilen, da den på forhånd er uafhængig af uforudsete trykændringer, således at man præcis kan regne med den væskemængde, som drejegrebet drejes til.It is possible to have markings on the valve, since it is independent of any unforeseen pressure changes in advance, so that the amount of fluid to which the pivot handle is turned can be accurately calculated.

5 DK 176638 B15 DK 176638 B1

Forindstillingsindretningen og differenstrykregulatoren sidder på samme akse over for hinanden. Aksen har en hældning i forhold til gennemstrømningskanalen, der forbinder tilgangssiden og afgangssiden.The presetting device and differential pressure regulator are on the same axis opposite each other. The axis has an inclination relative to the flow channel connecting the inlet and outlet side.

5 Differenstrykregulatoren 3 omfatter en rørforbindelse og en fjeder. Rørforbindel sen overfører trykket i gennemstrømningskanalen til differenstrykregulatoren.The differential pressure regulator 3 comprises a pipe connection and a spring. The pipe connection transfers the pressure in the flow duct to the differential pressure regulator.

I en reguleringsventil, der omfatter en differenstrykregulator, indstiller der sig en balance mellem ind- og udløbstrykket plus en fjederkraft, således at differens-10 trykket svarer tii fjederkraften. Med en given fjederkraft vil dette differenstryk derfor være konstant.In a control valve comprising a differential pressure regulator, a balance is established between the inlet and outlet pressure plus a spring force so that the differential pressure corresponds to the spring force. Therefore, with a given spring force, this differential pressure will be constant.

På grund af differenstrykregulatoren og forindstillingsindretningen opnår man overraskende, at den væskegennemstrømningsmængde, som ventilen forind-15 stilles til, vil bevares under hele ventilens operation. Selv ved udefra kommende trykændringer i anlægget, som ventilen opererer i, vil væskemængden holdes på et konstant flow.Surprisingly, due to the differential pressure regulator and the presetting device, it is achieved that the fluid flow rate to which the valve is preset will be maintained throughout the valve operation. Even with external pressure changes in the system in which the valve operates, the flow of liquid will be kept at a constant flow.

2020

Claims (3)

6 DK 176638 B16 DK 176638 B1 1. Reguleringsventil til brug i væskebårne anlæg, hvor reguleringsventilen omfatter: 5. et ventilhus (2) med en tilgangsside og en afgangsside forbundet med en gennemstrømningskanal; - en rotationssymmetrisk differenstrykregulator (3), der står i forbindelse med gennemstrømningskanaien mod tilgangssiden via en rørforbindelse og er placeret i en udboring i gennemstrømningskanaien til opretholdelse af et konstant dif- 10 ferenstryk meilem tilgangssiden og afgangssiden; - en forindstillingsindretning til forindstilling af den gennemstrømmende væskemængde, kendetegnet ved, at forindstillingsindretningen og differenstryk-reguiatoren er placeret over for hinanden på hver sin side af gennemstrømningskanaien på en fælles akse, og at forindstiilingsindretningen omfatter: 15. et drejegreb (14); - en spindel (9); - et ydre cylindrisk ventilelement (6) med en slids, der peger i indløbsretningen og - et indre ventilelement (7), der er placeret i det cylindriske ventileiement (6) så-20 ledes, at ventilelementernes flader er placeret i tæt anlæg mod hinanden, hvor det indre ventilelement (7) har et nedre skørt med en kurveform (8) og er forbundet til drejegrebet (14) ved hjælp af spindlen (9), således at man ved at dreje på drejegrebet (14) kan ændre åbningen i forindstiilingen.A control valve for use in liquid-borne systems, the control valve comprising: 5. a valve housing (2) with an inlet side and an outlet side connected to a flow duct; - a rotationally symmetric differential pressure regulator (3), which communicates with the flow channel toward the inlet side via a pipe connection and is located in a bore in the flow channel to maintain a constant differential pressure between the inlet and outlet side; - a presetting device for presetting the flow rate, characterized in that the presetting device and the differential pressure regulator are positioned opposite each other on the side of the flow channel on a common axis, and the presetting device comprises: 15. a pivot handle (14); - a spindle (9); - an outer cylindrical valve member (6) with a slot pointing in the inlet direction, and - an inner valve element (7) located in the cylindrical valve element (6) so that the faces of the valve elements are disposed in close contact with each other. , wherein the inner valve member (7) has a lower skirt with a waveform (8) and is connected to the pivot handle (14) by means of the spindle (9), so that by turning the pivot handle (14) the opening in the preset . 2. Reguleringsventil ifølge krav 1, kendetegnet ved, at forindstiilingsindretningen har markeringer på drejegrebet (14), der viser den gennemstrømmende vandmængde ved en given position af drejegrebet (14).Control valve according to claim 1, characterized in that the pre-setting device has markings on the swivel handle (14) showing the flow of water at a given position of the swivel lever (14). 3. Reguleringsventil ifølge krav 1, kendetegnet ved, at den fælles akse danner 3° en spids vinkel i forhold til gennemstrømningskanaien.Control valve according to claim 1, characterized in that the common axis forms a 3 ° at an acute angle to the flow channel.
DK200700999A 2007-07-06 2007-07-06 Control valve DK176638B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK200700999A DK176638B1 (en) 2007-07-06 2007-07-06 Control valve
PCT/DK2008/000181 WO2009006893A1 (en) 2007-07-06 2008-05-16 A control valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200700999A DK176638B1 (en) 2007-07-06 2007-07-06 Control valve
DK200700999 2007-07-06

Publications (1)

Publication Number Publication Date
DK176638B1 true DK176638B1 (en) 2009-01-05

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WO (1) WO2009006893A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304426B6 (en) * 2009-04-27 2014-04-30 Hennlich Industrietechnik, Spol. S R. O. Hydraulically controlled check valve
CZ304427B6 (en) * 2009-05-27 2014-04-30 Hennlich Industrietechnik, Spol. S R. O. Hydraulically operated check valve
DK177340B1 (en) * 2011-07-08 2013-01-28 Flowcon Int As Valve
ITMI20120118U1 (en) 2012-03-22 2013-09-23 Pettinaroli Flii Spa AUTOMATIC BALL BALANCING VALVE
DK179665B1 (en) * 2017-11-10 2019-03-13 Danfoss A/S Pressure controlled valve
DK180248B1 (en) * 2019-01-07 2020-09-15 Danfoss As Intellectual Property Differential pressure valve arrangement
CN111895116B (en) * 2020-08-06 2023-03-28 孔庆丰 Novel plunger type constant flow valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397867A (en) * 1920-05-26 1921-11-22 Thomas G Jones Valve
DK112985B (en) * 1963-04-29 1969-02-03 Dansk Pressalit Ind As Adjustment and shut-off tap.
FR1596693A (en) * 1968-11-28 1970-06-22
DK176350B2 (en) * 2005-06-23 2008-10-13 Frese As Control valve

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