NO134715B

NO134715B -

Info

Publication number: NO134715B
Application number: NO339972A
Authority: NO
Inventors: T G I Johansson
Original assignee: Neles Ab
Priority date: 1971-09-22
Filing date: 1972-09-21
Publication date: 1976-08-23
Also published as: NO134715C; DE2246566A1; DE2246566C2; FI57009C; GB1385536A; SE366812B; FI57009B

Description

Oppfinnelsen vedrorer en ventil, særlig reguleringsventil ved cisterner, omfattende et ventilhus med et ventillegeme som er vertikalt bevegelig fra og imot et ventilsete som åpner resp. The invention relates to a valve, in particular a control valve for cisterns, comprising a valve housing with a valve body which is vertically movable from and towards a valve seat which opens or

stenger et innldpskammer og et utldpskammer fra hverandre, en spindel, på hvis ene ende ventillegemet er anbragt, og på hvil- shuts off an intake chamber and an exhaust chamber from each other, a spindle, on one end of which the valve body is placed, and on rest-

ken også finns en skive, idet denne skive er forskyvbart bevege- ken there is also a disc, as this disc is displaceably movable

lig i et kammer, hvilket av skiven oppdeles i et ovre og et nedre kammer, beliggende i et annet hus anbragt ovenpå ventilhuset idet spindelen strekker seg fra det ene hus inn i det andre under samtidig avtetning av husene fra hverandre, en tilkobling til det ovre kammer og en tilkobling til det nedre kammer i huset, lekkspalte mellom skiven og den indre vegg av huset, hvorved skiven for ventilens åpning kan utsettes for et styretrykk som er tilstrekkelig til å overvinne det styretrykk som virker på ventillegemet i stengende retning, samt et med spindelen forbun- lying in a chamber, which is divided by the disc into an upper and a lower chamber, located in another housing placed on top of the valve housing, as the spindle extends from one housing into the other while simultaneously sealing the housings from each other, a connection to the upper chamber and a connection to the lower chamber in the housing, leakage gap between the disk and the inner wall of the housing, whereby the disk for the opening of the valve can be exposed to a control pressure that is sufficient to overcome the control pressure acting on the valve body in the closing direction, as well as a the spindle connected

det ratt for manuell innstilling av ventillegemet. the steering wheel for manual adjustment of the valve body.

Det nye og karakteristiske ved oppfinnelsen er at tilkoblingen The new and characteristic feature of the invention is that the connection

til det ovre kammer utgjores av en forbindelse fra det ovre kam- to the upper chamber is formed by a connection from the upper chamber

mer i huset gjennom åpninger og en aksial boring i ventilspin- more in the housing through openings and an axial bore in the valve spin-

delen og ventillegemet til utlopskammeret, og at ventilspindelen er forsynt med åpninger som muliggjor forbindelse mellom det nedre kammer og utlopskammeret, og hvis storrelse kan reguleres ved hjelp av en stillskrue. the part and the valve body of the outlet chamber, and that the valve stem is provided with openings which enable connection between the lower chamber and the outlet chamber, and whose size can be regulated by means of a set screw.

Et ytterligere trekk ved oppfinnelsen er at ventilspindelen, og derved også ventillegemet, har tre forskjellige stillinger som er manuelt innstillbare f.eks. ved hjelp av rattet, av hvilke stillinger den forste utgjor ventilens helt åpne stilling, den andre utgjor ventilens automatiske stilling og den tredje utgjor ventilens helt stengte stilling. A further feature of the invention is that the valve spindle, and thereby also the valve body, has three different positions which can be manually adjusted, e.g. by means of the steering wheel, of which positions the first constitutes the fully open position of the valve, the second constitutes the automatic position of the valve and the third constitutes the fully closed position of the valve.

En utforelsesform av ventilen ifolge oppfinnelsen skal beskrives i det efterfolgende under henvisning til tegningene, hvor: fig. 1 viser et tverrsnitt av ventilen ifolge oppfinnelsen i åpen stilling, An embodiment of the valve according to the invention will be described below with reference to the drawings, where: fig. 1 shows a cross-section of the valve according to the invention in the open position,

fig. 2 viser et tverrsnitt av samme ventil innstilt i automatstilling, og fig. 2 shows a cross-section of the same valve set in the automatic position, and

fig. 3 viser ventilen innkoblet som avstengningsventil for en cisterne. fig. 3 shows the valve connected as a shut-off valve for a cistern.

Ventilen omfatter et ventilhus 1 med et innlopskammer 2 og et utlopskammer 3 som kan stenges av fra hverandre ved hjelp av et ventillegeme 4 i samvirke med et ventilsete 5. Ventillegemet 4 og en spindel 6 på hvilken dette er anbragt er forsynt med en aksial boring 7. Spindelen 6 strekker seg gjennom ventilhuset I inn i et andre hus 8 festet oppå ventilhuset 1 og er bevegelig anbragt ._i det andre hus 8 via en styring 9 forsynt med tetningsringer. I spindelen 6 er der åpninger 10 som muliggjor kommunikasjon mellom boringen 7 og et nedre kammer 11 i det andre hus 8, samt åpninger 12 som muliggjor kommunikasjon mellom boringen 7 og et ovre kammer 13 i det andre hus 8. Inne i The valve comprises a valve housing 1 with an inlet chamber 2 and an outlet chamber 3 which can be shut off from each other by means of a valve body 4 in cooperation with a valve seat 5. The valve body 4 and a spindle 6 on which this is placed are provided with an axial bore 7 The spindle 6 extends through the valve housing 1 into a second housing 8 fixed on top of the valve housing 1 and is movably positioned in the second housing 8 via a guide 9 provided with sealing rings. In the spindle 6 there are openings 10 which enable communication between the bore 7 and a lower chamber 11 in the second housing 8, as well as openings 12 which enable communication between the bore 7 and an upper chamber 13 in the second housing 8. Inside the

den aksiale boring 7 er der et ror 14 forsynt med spalter 15, plassert slik at rorets 14 nedre kant i det minste delvis gir fri passasje gjennom åpningene 10. Spaltene 15 er plassert slik at de overlapper åpningene 12 hvorved fri passasje alltid tilveiebringes gjennom disse. Roret 14 kan justeres i verti-kalstilling, og dermed storrelsen av den frie passasje gjennom åpningene 10, ved hjelp av en stillskrue 16. Til spindelen 6 er, mellom åpningene 10 og åpningene 12, festet en skive 17 med en overflate storre enn legemets 4 overflate, og denne skive 17 deler inn det andre hus 8 i det ovre kammer 13 og det nedre kammer 11, hvilke imidlertid kommuniserer gjennom en ringspalte the axial bore 7 is where a rudder 14 is provided with slits 15, positioned so that the lower edge of the rudder 14 at least partially provides free passage through the openings 10. The slits 15 are positioned so that they overlap the openings 12 whereby free passage is always provided through them. The rudder 14 can be adjusted in vertical position, and thus the size of the free passage through the openings 10, by means of an adjusting screw 16. To the spindle 6, between the openings 10 and the openings 12, a disc 17 with a surface larger than the body 4 is attached surface, and this disc 17 divides the second housing 8 into the upper chamber 13 and the lower chamber 11, which, however, communicate through an annular gap

mellom skiven 17 og den indre vegg i huset 8. Det nedre kammer II er forsynt med en tilkobling 18. Ventillegemet 4 og spindelen 6 er forenet med et ratt 19, som er fastgjenget i et frem-spring 20 på det andre hus 8. For å forsterke ventilens virk-ning er en skruef jaer 21 anbragt mellom skiven 17 og det indre tak i huset 8. between the disk 17 and the inner wall of the housing 8. The lower chamber II is provided with a connection 18. The valve body 4 and the spindle 6 are united with a steering wheel 19, which is threaded into a projection 20 on the second housing 8. For to reinforce the valve's effect, a screw driver 21 is placed between the disc 17 and the inner roof of the housing 8.

Ventilen innstilles i onsket stilling med rattet 19. I stillingen 0 (fig. 1) er ventilen åpen, i stillingen A automatinnstilt (fig. 2) og i stillingen C lukket. Når ventilen er automatinnstilt virker den som en selvstengende ventil. The valve is set to the desired position with the steering wheel 19. In position 0 (fig. 1) the valve is open, in position A it is automatically adjusted (fig. 2) and in position C it is closed. When the valve is set to automatic, it acts as a self-closing valve.

På fig. 3 vises ventilen ifolge fig. 1 og 2 koblet til en cisterne 24 som skal tommes. Ved cisternens 24 utlop er der en avstengningsventil 25 som er koblet til ventilens innlopskammer 2. Ventilens utlopskammer 3 er koblet til en ledning 22 som er forbundet med sugesiden av en pumpe 26. Pumpens 26 trykkside er foruten til en avtappingsledning koblet til en ledning 23 koblet til tilkoblingen 18 i ventilen.. In fig. 3 shows the valve according to fig. 1 and 2 connected to a cistern 24 to be emptied. At the outlet of the cistern 24 there is a shut-off valve 25 which is connected to the valve's inlet chamber 2. The valve's outlet chamber 3 is connected to a line 22 which is connected to the suction side of a pump 26. The pressure side of the pump 26 is also connected to a drain line to a line 23 connected to connection 18 in the valve..

Ved tomming av cisternen må ledningssysternet være fylt, hvilket ved nyinstallasjon skjer manuelt via avtappingsledningen på vanlig måte. Når anlegget er tatt i bruk vil væske bli værende igjen i systemet efter avstengning. Når cisternen skal tommes, åpnes avstengningsventilen 25 og pumpen 26 startes. Væske fra pumpens 26 trykkside lofter da skiven 17 opp og dermed også ventillegemet 4 og ventilen åpnes. En liten væskemengde passerer gjennom åpningene 12 i det ovre kammer 13, inn i boringen 7 og ut i utlopskammeret 3, mens hovedmengden av den væske som skal tommes passerer direkte gjennom utlopskammeret 3. Også When emptying the cistern, the line systern must be filled, which in the case of a new installation is done manually via the drain line in the usual way. When the facility is put into use, liquid will remain in the system after shutdown. When the cistern is to be emptied, the shut-off valve 25 is opened and the pump 26 is started. Liquid from the pressure side of the pump 26 rises as the disk 17 rises and thus also the valve body 4 and the valve is opened. A small amount of liquid passes through the openings 12 in the upper chamber 13, into the bore 7 and out into the outlet chamber 3, while the main amount of the liquid to be emptied passes directly through the outlet chamber 3. Also

det nedre kammer 11 står via åpningene 10, og boringen 7 i kommunikasjon med utlopskammeret 4. Ved hjelp av disse åpninger 10 kan strommen til det ovre kammer 13 og dermed trykket på skiven 17 reguleres. the lower chamber 11 is via the openings 10, and the bore 7 in communication with the outlet chamber 4. By means of these openings 10, the flow to the upper chamber 13 and thus the pressure on the disk 17 can be regulated.

Når tommingen skal opphore stenges forst pumpen 26 hvorved trykket i ledningen 23 og på skiven 17 faller bort. Det trykk som tilveiebringes av den i innlopskammeret 2 innstrommende væske, blir da dominerende hvorfor ventillegemet 4 vil bli trykket mot ventilsetet 5 og ventilen stenges. When the emptying is to start, the pump 26 is first closed, whereby the pressure in the line 23 and on the disc 17 falls away. The pressure provided by the liquid flowing into the inlet chamber 2 then becomes dominant, which is why the valve body 4 will be pressed against the valve seat 5 and the valve is closed.

Ved endring av spalten mellom skiven 17 og den indre vegg i huset 8 kan ventilens stengetid endres på onsket måte. Man kan ved å endre spalten også ta hensyn til den forskjellige viskosi-tet for forskjellige væsker> tykkolje krever f.eks. en storre spalte enn bensin hvis samme stengetid bnskes. By changing the gap between the disk 17 and the inner wall of the housing 8, the closing time of the valve can be changed in the desired way. By changing the gap, you can also take into account the different viscosities for different liquids > thick oil requires e.g. a larger gap than petrol if the same closing time is required.

For å muliggjore manuell innstilling av ventilen i åpen resp. To enable manual setting of the valve in open or

stengt stilling, er denne utstyrt med et ratt 19 ved hjelp av hvilket ventillegemet 4, spindelen 6 og den på denne festede skive kan heves eller senkes i forhold til ventilsetet 5. Rattet 19 er bevegelig lagret i den ovre del av ventilspindelen 6, slik closed position, this is equipped with a steering wheel 19 by means of which the valve body 4, the spindle 6 and the disk attached to it can be raised or lowered in relation to the valve seat 5. The steering wheel 19 is movably mounted in the upper part of the valve spindle 6, as

at ved innstilling i automatstilling (fig. 2) kan ventilen åpnes ved trykket på skiven 17 og spindelen 6 derved heves i forhold that when set to automatic mode (fig. 2) the valve can be opened by the pressure on the disk 17 and the spindle 6 thereby raised in relation to

til rattet 19. to the steering wheel 19.

Claims

1. Valve, especially control valve for cisterns, comprehensive

a valve housing (1) with a valve body (4) which is vertically movable from and towards a valve seat (5) which opens or shuts off an inlet chamber (2) and an outlet chamber (3) from each other, a spindle (6), on one end of which the valve body (4) is placed, and on which there is also a disk (17), this disk (17) being displaceably movable in a chamber, which of the disk is divided into an upper (13) and a lower (11) chamber, located in another housing (8) placed on top of the valve housing (1) as the spindle (6) extends from one housing ( 1) into the other (8) while simultaneously sealing the housings from each other, a connection to the upper chamber (13) and a connection (18) to the lower chamber (11) in the housing (8), a leakage gap between the disc ( 17) and the inner wall of the housing (8), whereby the disc (17) for the opening of the valve can be subjected to a control pressure which is sufficient to overcome the control pressure acting on the valve body (4) in the closing direction, as well as one with the spindle (6 ) connected wheel (19) for manual adjustment of the valve body, characterized in that the connection to the upper chamber (13) is made by a connection from •the upper chamber (13) in the housing (8) through openings (12) and an axial bore (7) in the valve stem (6) and the valve body (4) to the outlet chamber (3), and that the valve stem (6) is provided with openings (10) which enables connection between the lower chamber (11) and the outlet chamber (3), and whose size can be regulated by means of an adjusting screw (16).

2. Valve as specified in claim 1, characterized in that the valve spindle (6), and thereby also the valve body (4), has three different positions (0, A and C) which are manually entered adjustable e.g. by means of the steering wheel (19), of which positions the first constitutes the valve's fully open position (0), the second constitutes the valve's automatic position (A) and the third constitutes the valve's fully closed position (C).