AU613165B2

AU613165B2 - Feeder

Info

Publication number: AU613165B2
Application number: AU31578/89A
Authority: AU
Inventors: Desmond John Berry
Original assignee: DEGA RESEARCH LIMI Pty
Current assignee: DEGA RESEARCH Ltd Pty
Priority date: 1988-04-08
Filing date: 1989-03-22
Publication date: 1991-07-25
Anticipated expiration: 2009-03-22
Also published as: AU3157889A

Description

P/00/011 Form PATENTS ACT 1952-1973 COMPLETE SPECIFICATION

(ORIGINAL)

FOR OFFICE USE Class: Int. Cl: 613165 Application Number: SLodged: SComplete Specification-Lodged: Accepted: Published: SPriority: S Related Art: TO BE COMPLETED BY APPLICANT Name of Applicant: DEGA RESEARCH PTY.LTD.

Addressof Applicant: 15 Century Drive, Braeside Victoria, 3195 Australia Actual Inventor: DESMOND JOHN BERRY FOO)R siforSeri'a/OS-- -O90HN L.DAVIES CO. Patent Attorney 39 Cheviot Rd. (P.O.Box 436 Mt.Waverley Vic. 3149 Complete Specification for the invention entitled:

FEEDER

The following statement is a full description of this invention, including the best method of performing it known to me:- 'Note: The description is to be typed in double spacing, pica type face, in an area not exceeding 250 mm in depth and 160 mm in width, on tough white paper of good quality and it is to be inserted inside this form.

11710/76-L C.J. TIOMpsoN. Commonwealth Government Printer. Canberra

V

r This invention relates generally to equipment and devices for automatically dispensing chemicals into pipelines while a liquid is flowing therethrough, such devices being known as feeders.

The invention, according to a general concept may therefore reside in feeder apparatus for automatically 1 feeding particulate chemical treatment substances into a pipeline during passage of water therethrough. the apparatus comprising a walled container with a filling opening closable by a lid and forming a reservoir for a particulate chemical treatment substance or substances, releasing treatment chemical upon contact with water, the reservoir container I being operatively connected by an inlet pipe and control valve to a water stream in a water pipeline and having an i untreated water flow inlet and outlet for feeding treated Swater into a pipeline water stream, the water inlet being fluidly connected to a water discharge point within and at, or adjacent the bottom of the reservoir container, the bottom of the reservoir container being directly attache to, or integrally formed with a section of water pipeline and having a bottom discharge orifice opening into the pipeline, the orifice being provided with a spring-loaded check valve, whereby untreated water flows into the reservoir container and upwardly through particulate chemical treatment substance or substances within the reservoir container to counteract settling of the particulate chemical treatment substance or substances while water is flowing through the apparatus.

r) -2- '7vVB~ rr~ ILpZ-~'~My~YY~U~LCiYrYY;Y~Ci-sriliu~- Preferably, fixed means are provided within the reservoir container to interrupt direct water flow from the untreated water inlet to the treated water outlet, the means comprising a centrally disposed vertical baffle member extending from the bottom of the reservoir container upwards for most of the height of the container.

2 Preferably a flow restriction device is interposed in the pipeline between the untreated water inlet-orifice and chemical feeder outlet orifice of the reservoir to vary the water flow and create a pressure drop to facilitate water flow through the feeder device when the control valve is opened.

A non-limitative example of a practical arrangement

CC

of the invention will now be described with reference to the accompanying drawings in which: In Figure 1 is a schematic view of the water treatment chemical feeder apparatus of the invention.

Referring to the drawings, there is shown apparatus in the form of an on-line feeder device for the chemical treatment of water, such as for example chlorination of water preferably by means of granules of any chlorinating chemical which releases chlorine upon contact with water, the device comprising a reservoir 10 with a chamber formed by a cylindrically walled container having a threaded top with a threaded lid 11 which is preferably sealed by an O-ring, the bottom of the reservoir is directly attached to, or integrally formed with a section of water pipeline 12 and has a bottom discharge orifice 13, opening into the pipeline and which is provided with a spring-loaded check valve 14.

The reservoir is adapted to hold "chlorine" granules and is also provided with a central baffle and discharge weir pipe 16, extending from the bottom or floor of the reservoir up to almost the top or roof thereof to retain the granules.

-3i The top of the baffle/discharge weir pipe 16 is provided with a rigid strainer 17. On the upstream side of the feeder denoted by the arrow A, there is provided in the pipeline 12, a reservoir inlet water intake opening 18 for admitting water from the water stream of the pipeline 12 into the inlet pipe 19 through a leg upwards and then downwards into the bottom of the reservoir to be discharged from the orifice 20, under- 9 0 0 o 0 neath any granules. The inlet pipe 19 can be closed off by oo 00 So the manual or automatic control valve 21. The water flow 0 SQ O 10 o restriction valve 22 can be tilted on its axis to provide a 000000 o0 o ,oo 0 partially variable restriction within the pipeline creating 0 0 a pressure drop between the upstream and downstream points 00ooo A and B to allow vater to flow through the device, when 00O oo the control valve is opened. The water upflow design of the o 00 15 feeder device of the invention counteracts packing of the 00 0 0 0 granules at the bottom of the reservoir during operation of the device during water-flow through the pipeline with the 00 0 o 0 o0 control valve open, during which time a large surface area of 00 0 00 the granules is contantly exposed to water flow.

Claims

1. Feeder apparatus for automatically feeding particulate chemical treatment substances into a pipeline during passage of water therethrough, the apparatus com- prising a walled container with a filling opening, closable by a lid and forming a reservoir for a particulate chemical treatment substance or substances releasing treatment cc chemical upon contact with water, the reservoir container 6 being operatively connected by an inlet pipe and control valve to a water stream in a water pipeline and having an CT untreated water flow inlet and outlet for feeding treated water into a pipeline water stream.the water inlet being c fluidly connected to a water discharge point within and at, or adjacent the bottom of the reservoir container, the bottom of the reservoir container being directly attached 0 I to or integrally formed with a section of water pipeline C 4 and having a bottom discharge orifice opening into the C V pipeline, the orifice being provided with a spring-loaded check valve, whereby untreated water flows into the reser- voir container and upwardly through particulate chemical substance or substances within the reservoir container to counteract settling of the particulate cheical treatment substance or substances while water is flowing through the apparatus.

2. Apparatus according to claim l1wherein fixed means are provided within the reservoir container to interrupt direct water flow from the untreated water inlet to the treated water outlet.

3. Apparatus according to claim 2 wherein the fixed flow interruption means comprises a centrally disposed, vertical baffle member extending from the bottom of the reservoir container upwards for most of the height of the container.

4. Apparatus according to any preceding claim, wherein a flow restriction device is interposed in the pipeline between the untreated water inlet orifice and chemical feeder outlet orifice of the reservoir container to vary the water flow and create a pressure drop to facilitate water flow through the feeder device, when the control valve is opened.

Apparatus according to any preceding claim, where- in the reservoir container has a chamber formed by a cylindrical wall with a threaded top. openable and closable by a threaded lid sealed by a sealing means.

6. Apparatus according to any preceding claim wherein the reservoir container is adapted to hold "chlorine granules".

7. Apparatus according to any preceding claim wherein the reservoir container is provided with central baffle and discharge weir pipe, extending from the bottom or floor of the reservoir up to almost the top or roof thereof to retain the granules.

8. Apparatus according to claim 8 wherein the top of the baffle forms a discharge weir pipe which is provided with a rigid strainer.

9. Apparatus according to any preceding claim where- in on the upstreF side of the feeder, there is provided in the pipeline, a reservoir inlet water intake opening L for admitting water from the water stream of the pipeline iinto the inlet pipe through a leg upwards and then down- wards into the bottom of the reservoir to be discharged from the orifice underneath any granules.

1 0. Apparatus according to any preceding claim, i wherein the inlet pipe can be closed off by a manual or l automatic control valve.

11. Apparatus according to claim 10, wherein the valve is a water flow restriction valve which can be tilted on itE axis to provide a partially variable restriction within the pipeline creating a pressure drop E between the upstream and downstream points to allow water to flow through the device, when the control valve is opened.

12. Feeder apparatus for automatically feeding parti- culate chemical treatment substances into a pieline during passage of water therethrough substantially as herein- before described with reference to the accompanying drawings.

13. A method of automatically feeding particulate chemical treatment substances into a pipeline during passage of water therethrough, described and/or claimed and illustrated therein. DATED this 17th day of March 1989 DEGA RESEARCH PROPRIETARY LIMITED By their Patent Attorney: JOHN L. DAVIES CO. -7-