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1. WO2020193844 - REJECT VALVE OF REVERSE OSMOSIS SYSTEM

Publication Number WO/2020/193844
Publication Date 01.10.2020
International Application No. PCT/FI2020/050102
International Filing Date 18.02.2020
IPC
F16K 15/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
06with guided stems
F16K 17/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
F16K 21/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
21Fluid-delivery valves
02providing a continuous small flow
F16K 15/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
CPC
B01D 61/025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration ; ; Nanofiltration
025Reverse osmosis; Hyperfiltration
B01D 61/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration ; ; Nanofiltration
08Apparatus therefor
F16K 1/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift valves ; or globe valves; , i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
32Details
34Cutting-off parts, e.g. valve members, seats
36Valve members
38of conical shape
F16K 15/026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
025the valve being loaded by a helicoidal spring
026the valve member being a movable body around which the medium flows when the valve is open
F16K 15/063
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
06with guided stems
063the valve being loaded by a helicoidal spring
F16K 17/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
Applicants
  • SOLAR WATER SOLUTIONS OY [FI]/[FI]
Inventors
  • POHJOLA, Heikki
Agents
  • LEITZINGER OY
Priority Data
2019522926.03.2019FI
Publication Language English (EN)
Filing Language Finnish (FI)
Designated States
Title
(EN) REJECT VALVE OF REVERSE OSMOSIS SYSTEM
(FR) SOUPAPE DE REJET DE SYSTÈME D'OSMOSE INVERSE
Abstract
(EN)
A reject valve of a reverse osmosis system, throttling the reject flow and maintaining the system pressure at a predetermined level despite the volume of the flow being pumped into it. The frame (1) of the reject valve comprises a cylindrical flow duct (2). A conical element (5) closes and opens the flow duct (2). When the valve is closed, the jacket of the cone (5) leans on the outflow end (3) of the outflow duct (2). A prestressed compression spring (6) is located between the frame (1) and a support plate (9) supported on the arm (4) of the cone (5). When the flow entering the valve exerts force on the conical needle (5,4) exceeding the reverse force exerted thereon by the spring (6), the conical needle (5,4) starts to move in the direction of the flow, opening the flow duct (2) of the valve. The outflow end (3) of the outflow duct (2) is fitted with small, groove-like ducts always allowing through-flow, forming a constant choke. The diameter of the flow duct (2) is at least 2.2 x the diameter of the arm (4) and the flank angle of the cone (5) is from 13 to 20 degrees.
(FR)
L'invention concerne une soupape de rejet d'un système d'osmose inverse, étranglant le flux de rejet et maintenant la pression du système à un niveau prédéterminé malgré le volume du flux pompé dans ce dernier. La structure (1) de la soupape de rejet comprend un conduit d'écoulement cylindrique (2). Un élément conique (5) ferme et ouvre le conduit d'écoulement (2). Lorsque la soupape est fermée, la chemise du cône (5) s'appuie sur l'extrémité de sortie (3) du conduit de sortie (2). Un ressort de compression précontraint (6) est situé entre la structure (1) et une plaque de support (9) soutenue sur le bras (4) du cône (5). Lorsque l'écoulement qui entre dans la soupape exerce une force sur l'aiguille conique (5, 4) supérieure à la force inverse exercée sur cette dernière par le ressort (6), l'aiguille conique (5, 4) commence à se déplacer dans la direction du flux, ouvrant le conduit d'écoulement (2) de la soupape. L'extrémité de sortie (3) du conduit de sortie (2) est équipée de petits conduits de type rainure permettant toujours un écoulement traversant, formant un étranglement constant. Le diamètre du conduit d'écoulement (2) est d'au moins 2,2 x le diamètre du bras (4) et l'angle de flanc du cône (5) est de 13 à 20 degrés.
Latest bibliographic data on file with the International Bureau