WO1995000716A1 - Systeme de regulation et de soupape de regulation a orifice d'evacuation selective d'eaux pluviales ou d'egouts - Google Patents

Systeme de regulation et de soupape de regulation a orifice d'evacuation selective d'eaux pluviales ou d'egouts Download PDF

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Publication number
WO1995000716A1
WO1995000716A1 PCT/AU1994/000339 AU9400339W WO9500716A1 WO 1995000716 A1 WO1995000716 A1 WO 1995000716A1 AU 9400339 W AU9400339 W AU 9400339W WO 9500716 A1 WO9500716 A1 WO 9500716A1
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WO
WIPO (PCT)
Prior art keywords
valve
control
fluid
demand
diverter
Prior art date
Application number
PCT/AU1994/000339
Other languages
English (en)
Inventor
Robert Garfield Millar
Daniel Brian Penny
Original Assignee
Fox Sales & Distribution Pty. Ltd.
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 Fox Sales & Distribution Pty. Ltd. filed Critical Fox Sales & Distribution Pty. Ltd.
Priority to AU69907/94A priority Critical patent/AU6990794A/en
Publication of WO1995000716A1 publication Critical patent/WO1995000716A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water

Definitions

  • THIS INVENTION relates to an improved valve and control system.
  • the invention concerns an improved valve and control system for use in the management of disposal of contaminated liquids such as waste water.
  • Earlier United States patent specification 4039005 disclosed a flow diverter for selectively directing waste water or stormwater to the sewer or to the drain respectively.
  • the flow diverter included a valve and a sump.
  • the sump had the sewer inlet located beneath a stormwater drain inlet. Liquid flowing into the sump preferentially flows into the sewer inlet.
  • the valve included a mechanism operable in response to the supply of water to the washdown facility to selectively open or close the inlets. Two closures were provided at each end of a lever. The lever was driven by inflatable bellows fed with water by a control line branching from the main supply line leading to the washdown facility. A valve was used to regulate the supply of water to the bellows.
  • a control valve and control system for a washdown facility having a demand valve located between a supply of fluid and a delivery outlet, the control valve and control system including a diverter valve locatable in a sump and operable by the demand valve to selectively direct fluid to either one of two drain outlets, a level sensor for detecting fluid level in the sump and control circuit responsive to the sensor for operating the diverter valve for at least one predetermined time period to direct fluid to a selected one of the outlets.
  • control circuit include a controllable valve coupled to extend between the supply of fluid and the demand valve.
  • controllable valve is a solenoid valve. Operation of the solenoid valve enables the diverter valve to be opened and closed.
  • the control circuit preferably includes an adjustable timer circuit so that the predetermined period of time may be selected.
  • the timer circuit is variable to provide control operation of the solenoid valve for a period of time between three to ten seconds.
  • the control circuit include a counter which enables the number of predetermined time periods to be set.
  • the level sensor may comprise a float or solid state device responsive to provide an output when the fluid level in the sump 17 reaches a predetermined level. This output is employed to achieve a first flush or wash of the washdown area in the case of rain on the washdown area so that this first flow of water is directed into the sewer and not the stormwater drain.
  • Figure 1 is a diagrammatic view of the valve and control system according to one embodiment of the invention.
  • Figure 2 is a detailed diagram of a known diverter valve
  • Figure 3 is a view of a portion of the valve and control system shown in Figure 1;
  • FIG. 4 is a block diagram of a control system according to an embodiment of the invention.
  • Figure 5 is a detailed circuit diagram of the block diagram shown in Figure 4.
  • FIG. 1 there is an inlet line 10 for supplying washdown fluid to the valve and control system of the invention.
  • a demand valve 11 having an on/off tap 12 is coupled to the inlet line 10.
  • a hose 13 is coupled to the tap 12 and a supply nozzle 14 enables fluid to be delivered for a washdown operation.
  • a control line 15 extends from the demand valve 11 to a diverter valve 16.
  • the diverter valve is located within a sump 17 and is operable to direct fluid collecting in the sump to either exit from the sump via a stormwater drain 18 or a waste drain or sewer 19.
  • the stormwater drain 18 is located above the waste drain or sewer 19.
  • the control system which forms part of the invention is identified generally by the numeral 20.
  • FIG. 2 shows detail of a known diverter valve 16.
  • Valve 16 includes a lower part 30 and a relatively movable upper part 31 comprising a base 32 and a cap 33.
  • the base 32 and the cap 33 include recesses 34 and 35.
  • the diverter valve 16 has a valve member 36 having a periphery 37 which provides an annular seal when seated against seat 38.
  • Diaphragm 39, which forms part of the valve member 36 is clamped between the base 32 and the cap 33.
  • the diaphragm 39 and the recess 34 form the walls of a chamber 40 which in Figure 2 is shown in its minimal volume when the diverter valve is closed and assumes a maximum volume when the valve is open.
  • Control line 15 communicates with chamber 40 and the demand valve 11.
  • Valve shaft 41 is fixed at one end to the lower part 30 and at its free end to the diaphragm 39.
  • Control fluid is bled from chamber 40 through bore 45 which extends actually along the shaft 41 to a bleed opening 46.
  • Needle valve 47 is adjustably positioned in the bleed opening 46.
  • Bleed pressure valve (not shown) is located upstream of the needle valve 47 and comprises a spring biased bleed pressure valve member.
  • a channel (not shown) is formed in the bleed pressure valve so that fluid can flow through the bleed pressure valve when open.
  • the bleed pressure valve may be omitted if desired.
  • the space between the bore and the shaft 41 allows the flow of bleed fluid through opening 50.
  • FIG. 3 shows greater detail of the control system 20 of the invention.
  • the control system includes a solenoid valve 60 which provides an alternative source of fluid to the control line 15 from the inlet line 10.
  • the solenoid valve 60 when open, provides a source of fluid via line 61 for moving actuator 62.
  • Actuator 62 is operable to operate micro switch 63.
  • Control circuit is shown generally by the numeral 64. This circuit is supplied with power via line 65 and an input control signal is supplied to the circuitry 64 via line 66. Line 66 is coupled to a level sensor (not shown) located in the sump 17.
  • FIG. 4 shows greater detail of the circuity 64. That circuit includes demand circuits 67 which derive an input from the micro switch 63 and a fluid level circuit 68 which derives its input from the level sensor located in the pit or sump 17. The outputs from circuits 67 and 68 are coupled to a counter 69 which controls timing circuit 70.
  • the timing circuit 70 is operable to energise solenoid valve 60 to enable the diverter valve (not shown in this Figure) to be controlled to effect a first or subsequent wash of the washdown area.
  • FIG. 5 shows greater circuit details of the block diagram shown in Figure 4.
  • the demand circuit 67 is shown having the normally closed micro switch 63 connected in series with a resistor and across a reference potential and a supply potential.
  • Gate 72 provides a delay for a predetermined time period. The output from gate 72 is made available to monostable 73. The output pulse derived from monostable 73 is used as a reset pulse for counter 74.
  • Fluid level circuit 68 has a level sensor coupled to invertor 71.
  • the invertor 71 is connected to a latch 76 which consists of a capacitor diode network.
  • the latch 76 is coupled to an input of counter 74 and to NAND GATE 79.
  • NAND gate 79 The other input to NAND gate 79 is secured from an end of count LED 80.
  • the output from NAND gate 79 is applied to timer 81 which provides a timed output signal to the base electrode of switching transistor 82.
  • Transistor 82 is operative to energise the solenoid valve 60.
  • the coil of the solenoid valve is shown and that coil is operative to switch the relay 83 to operate the valve.
  • valve and control system of the invention is as follows. Operation of supply nozzle 14 when the tap 12 is open enables washdown fluid to be supplied to the washdown facility. When the nozzle 14 is open, a control signal is supplied to the diverter valve 16 via control line 15. The demand valve also causes operation of the actuator 62 to switch micro switch 63. This sets the control circuit 64 to the “ready” position. This position will hold until an "activate” signal is received from the level sensor coupled to line 66 and to the liquid level circuit 68.
  • the solenoid valve 60 When a level indicative signal is received from the sensor, the solenoid valve 60 is energised and fluid pressure is applied from inlet line 10 via the solenoid valve to the demand valve 11 to ensure that the diverter valve 16 is opened so that fluid collecting in the sump 17 is diverted to the outlet 19.
  • the solenoid ON time is adjustable is suit particular applications and may typically be between 3 to 10 seconds.
  • Timer 81 provides the timed energization of the solenoid valve 60.
  • the counter requires two signal inputs in the proper sequence for it to function to correctly. First a signal is secured from the demand circuit 67 and a second signal is received from the level sensing circuit 68. When the second signal is received, the counter is activated and sends the signal to the timer 81. The timer energises the solenoid for a predetermined time period to cause the diversion valve to open and to discharge contaminated fluid through outlet 19. The diversion valve closes in the normal manner once the solenoid valve is de-energised. The counter when in the "ready mode" is able to initialise the timer 81 any number of times as required on receipt of signals from the level sensor. The number of operations may be governed by the area of the washdown facility and the volume of the sump.
  • this number may be preset into the counter 74.
  • the counter is reset if the demand circuit 67 is activated before the end of its cycle. After the predetermined number of discharges from the sump, the liquid level rises over the sensor and fluid may then be discharged through outlet 18.
  • valve and control system of the invention thus provides for a first flush of contaminated fluid resulting from rain on the washdown area and for this contaminated fluid to be discharged through outlet 19. After first flush, should rain continue, the diverter valve is closed and any additional fluid collecting in the sump is then discharged through outlet 18.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Flow Control (AREA)

Abstract

Système de régulation et de soupape de régulation pour une installation de lavage au jet. L'installation comprend une soupape (11) fonctionnant à la demande entre une alimentation en fluide (10) et un orifice de décharge (14). Ce système comprend une soupape de déviation (16) située dans une citerne, et qui est actionnée par la soupape (11) fonctionnant à la demande à travers un conduit de régulation (15) afin de diriger sélectivement le fluide vers l'un ou l'autre des deux orifices de décharge (orifice d'évacuation d'eau pluviale (18) ou égouts (19)). Le système comprend un module de commande (20) muni d'un détecteur de niveau et d'un circuit de commande (figures 3, 4, 5) sensible au détecteur afin d'actionner la soupape de déviation (16) pendant au moins un intervalle prédéterminé, et de diriger le fluide contenu dans la citerne (17) vers l'un des orifices de décharge choisi (18, 19).
PCT/AU1994/000339 1993-06-28 1994-06-23 Systeme de regulation et de soupape de regulation a orifice d'evacuation selective d'eaux pluviales ou d'egouts WO1995000716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69907/94A AU6990794A (en) 1993-06-28 1994-06-23 Selective stormwater or sewer outlet control valve and control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL9641 1993-06-28
AUPL964193 1993-06-28

Publications (1)

Publication Number Publication Date
WO1995000716A1 true WO1995000716A1 (fr) 1995-01-05

Family

ID=3777011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1994/000339 WO1995000716A1 (fr) 1993-06-28 1994-06-23 Systeme de regulation et de soupape de regulation a orifice d'evacuation selective d'eaux pluviales ou d'egouts

Country Status (1)

Country Link
WO (1) WO1995000716A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407102A (en) * 2003-10-14 2005-04-20 Quintin Anthony Murfin Drainage separator system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039005A (en) * 1974-12-19 1977-08-02 Gary John Clifford Flow diversion means
AU1147388A (en) * 1987-02-11 1988-08-18 Fox Wastewater Systems Pty Ltd Improvements in valves
DE3707219A1 (de) * 1987-03-06 1988-09-15 Peter Ueberall Vorrichtung zum abtrennen von fluessigkeitsteilmengen aus einem bestimmten zuflussbereich, der in einen tiefer liegenden auffangbehaelter entsorgt wird, vorzugsweise fuer fahrzeugwaschanlagen
EP0565426A1 (fr) * 1992-04-06 1993-10-13 Elf Antar France Procédé et dispositif d'économie d'eau

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039005A (en) * 1974-12-19 1977-08-02 Gary John Clifford Flow diversion means
AU1147388A (en) * 1987-02-11 1988-08-18 Fox Wastewater Systems Pty Ltd Improvements in valves
DE3707219A1 (de) * 1987-03-06 1988-09-15 Peter Ueberall Vorrichtung zum abtrennen von fluessigkeitsteilmengen aus einem bestimmten zuflussbereich, der in einen tiefer liegenden auffangbehaelter entsorgt wird, vorzugsweise fuer fahrzeugwaschanlagen
EP0565426A1 (fr) * 1992-04-06 1993-10-13 Elf Antar France Procédé et dispositif d'économie d'eau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407102A (en) * 2003-10-14 2005-04-20 Quintin Anthony Murfin Drainage separator system
GB2407102B (en) * 2003-10-14 2007-08-15 Quintin Anthony Murfin Polluted water effluent and rainfall separating drainage system

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