NO116362B

NO116362B -

Info

Publication number: NO116362B
Application number: NO16003565A
Authority: NO
Inventors: J Swett
Original assignee: Rexall Drug Chemical
Priority date: 1964-10-28
Filing date: 1965-10-12
Publication date: 1969-03-10
Also published as: GB1128292A; BE670975A; CH446173A; NL6513804A; LU49658A1; AT279469B; SE311609B; DE1963368U; ES318254A1

Description

Anordning for å øke en pumpes sugeevne, spesielt for pumper i automatisk elek-trisk drevne trykktankanlegg for husholdnings vann. Device for increasing a pump's suction capacity, especially for pumps in automatically electrically operated pressure tank systems for domestic water.

Anordningen er i et utførelseseksempel The device is in an exemplary embodiment

vist på tegningen og består av en sylindrisk shown in the drawing and consists of a cylindrical

tank 2 (sugetank) plasert vertikalt på samme plan som pumpen 4 og så nær inntil tank 2 (suction tank) placed vertically on the same level as pump 4 and then close to it

denne som mulig. Sugerøret 1 fra brønnen this as possible. Suction pipe 1 from the well

som er forsynt med en tilbakeslagsventil er which is provided with a non-return valve is

tilkoblet sugetankens 2 topp. Fra sugetankens 2 bunn er rørforbindelse 3 til pumpens connected to the suction tank's 2 top. From the bottom of the suction tank 2 is pipe connection 3 to the pump

sugeside. Når sugetanken 2 med de tilkop-lete rør er fylt med vann gjennom et plugg-hull i dens topp og denne plugg er innsatt suction side. When the suction tank 2 with the connected pipes is filled with water through a plug hole in its top and this plug is inserted

etter fyllingen, vil — når pumpens startes after filling, will — when the pump is started

— vannet strømme inn i sugetanken 2 like — the water flows into the suction tank 2 equally

hurtig, som det pumpes ut fra denne, forut-satt at anlegget er uten lekkasjer. Men da quickly, as it is pumped out from this, provided that the system is without leaks. But then

dermå regnes med, at der vil snike seg luft it must be assumed that air will sneak in

inn i sugetanken, bl. a. med vannet fra into the suction tank, e.g. a. with the water from

brønnen, slik at der oppstår et luftrom eller the well, so that an air space or

tomrom i sugetanken, som vil øke for hver empty space in the suction tank, which will increase with each

periode som pumpen er i virksomhet må period that the pump is in operation must

dette motvirkes ved hjelp av en automatisk this is counteracted by means of an automatic

styrt ventil 8 på sugetankens topp, som har controlled valve 8 on the top of the suction tank, which has

rørforbindelse 7 med pumpens trykkside 9 pipe connection 7 with the pump's pressure side 9

og fra ventilen 8 til trykktankens 10 vann-rum. Ventilen 8 har altså til oppgave i pumpens 4 hvileperiode, å slippe vann inn i and from the valve 8 to the water space of the pressure tank 10. The valve 8 thus has the task during the rest period of the pump 4, to let water in

sugetankens 2 eventuelle tomrom. Den luft the suction tank's 2 possible voids. The air

som måtte finnes i sugetanken 2 etter at which had to be found in suction tank 2 after that

trykket mellom begge tanker er utjevnet, the pressure between both tanks is equalized,

slippes ut gjennom et særskilt rør 11 tilkoplet sugetankens 2 høyeste punkt, fø-rende inn på trykktankens 10 topp (luftrom). På dette avluftningsrør 11 er plasert is discharged through a special pipe 11 connected to the highest point of the suction tank 2, leading into the top of the pressure tank 10 (air space). On this vent pipe 11 is placed

en ventil 12 med en svak springfjær under a valve 12 with a weak spring underneath

ventilen for å løfte denne fra sitt sete i the valve to lift it from its seat i

samme øyeblikk trykkutjevningen har fun-net sted. Denne ventil 12 vil lukke seg at the same moment pressure equalization has taken place. This valve 12 will close

straks pumpen settes i bevegelse på grunn as soon as the pump is set in motion on the ground

av det vakuum, som oppstår i røret fra of the vacuum that occurs in the pipe from

sugetanken. the suction tank.

Det hele anlegg virker i sammenheng The entire facility works in conjunction

på følgende måte: in the following way:

I samme øyeblikk som pumpen 4 star-ter, vil den automatiske styreventil 8 av-stenge forbindelsen mellom trykktank 10 og sugetank 2. Luftavløpsrøret blir likeledes avstengt i røret 11 ved hjelp av ventilen 12, hvis fjær må gi etter for vakuumet i sugetanken, som oppstår samtidig med igang-setningen. At the same moment that the pump 4 starts, the automatic control valve 8 will shut off the connection between the pressure tank 10 and the suction tank 2. The air drain pipe is likewise shut off in the pipe 11 by means of the valve 12, whose spring must yield to the vacuum in the suction tank, which occurs at the same time as the start sentence.

Den automatisk styrte ventil 8 som vi-ses i ca. full størrelse ved siden av pumpe-anlegget på tegningen, stenges ved hjelp av pumpetrykket, som blir overført gjennom røret 7 til ventilens endeflate (som har form av et rundt stempel) og presser denne inn mot sitt sete så lenge pumpingen pågår. Når pumpen stopper etter oppnådd maksi-mumtrykk på trykktanken, vil trykket på ventilen falle så meget, at springfjæren under ventilstemplet (som under pumpeperi-oden har vært sammenpresset) får over-taket og presser ventilen i åpen stilling. Nå kan vann fra trykktanken passere gjennom røret 9, gjennom den åpne ventil og ned på sugetankens eventuelle tomrom. Dette skjer meget hurtig1 på grunn av den store trykkforskjell mellom disse tanker. Når trykket er helt utjevnet vil som tidligere nevnt, fjæren i ventilen 12 sette denne i åpen stilling, og gi den eventuelle luft i sugetanken anledning til å strømme opp gjennom røret 11 som fører til trykktankens luftrom. På denne måte vil sugetanken bli helt vannfylt, og klar for neste pumpeperiode. The automatically controlled valve 8 shown in approx. full size next to the pump plant in the drawing, is closed by means of the pump pressure, which is transmitted through the pipe 7 to the end face of the valve (which has the shape of a round piston) and presses this in towards its seat as long as pumping is in progress. When the pump stops after reaching the maximum pressure on the pressure tank, the pressure on the valve will drop so much that the spring under the valve piston (which has been compressed during the pumping period) is overtaken and pushes the valve into the open position. Now water from the pressure tank can pass through pipe 9, through the open valve and down into the suction tank's possible void. This happens very quickly1 due to the large pressure difference between these tanks. When the pressure is completely equalized, as previously mentioned, the spring in the valve 12 will set it in the open position, and give any air in the suction tank the opportunity to flow up through the pipe 11 which leads to the pressure tank's air space. In this way, the suction tank will be completely filled with water, and ready for the next pumping period.

For å oppnå best mulig virkning av automatventilen ved stengning og åpning' anbringes en regulerbar fjærbelastet tilbakeslagsventil 6 på stigerøret 5, og en smal rille i lengderetning. In order to achieve the best possible effect of the automatic valve when closing and opening, an adjustable spring-loaded non-return valve 6 is placed on the riser 5, and a narrow groove in the longitudinal direction.

Claims

Device for increasing the pump's suction capacity, especially intended for automatic electric

trically operated pressure tank systems for household water and the like, characterized by the fact that it consists of a cylindrical suction tank (2) positioned vertically as close to the pump (4) as possible and on the same level and with its top approximately at the same height as the bottom of the pressure tank (10) ( where the suction pipe (1) from the well with a non-return valve is connected to the top of the suction tank (2), and the suction pipe (3) from the pump is connected to the bottom of the suction tank (2), whereby an automatically controlled valve (8) with pipe (7) from

the pressure side of the pump (4) and pipe (9) from the valve to the pressure tank (10) as well as the pipe connection (11) with the spring-lifting valve (12) from the top of the suction tank to the air space of the pressure tank make it possible to fill any voids in the suction tank (2), and remove it harmful liift far the suction tank, while the pump (4) is at rest.