2.3. Design Guideline. Water Supply Booster Pump Station

Transcription

1 2.3 Design Guideline Water Supply Booster Pump Station

2 2.3 Water Supply Booster Pump Station Design Guideline Table of Contents Design Guideline... 1 Water Supply Booster Pump Station... 1 Description:... 3 Objective:... 3 Reference Documents:... 3 Component Description: Pump Station Site Electricity Supply Switchboard Perimeter Fence Pumps Pump Controls Pipework Electromagnetic Flow Meter Standard Drawings and Site Photos... 7 Schematic Plan:... 8 Figure 1 Avenel Park Estate Site Layout Plan... 9 Figure 3 and 4 Pump Configurations Avenel Park Estate

3 2.3 Water Supply Booster Pump Station Design Guideline Description: The water supply booster pump station is a component of the reticulation system and will pump to an elevated water supply storage tank upon demand. The operation of the pump will be governed by a low water level signal from the tank. Objective: The objective of the water supply booster pump station is to provide a water supply that meets the customer demands for reliability of supply and flow. Reference Documents: WSAA MRWA Water Supply Code of Australia GVW Supplement to the WSAA MRWA Water Supply Code of Australia GVW Product Manual GVW Development and Construction Manual Design Manual Water Storage Tank (To be prepared) GVW General Electrical Specification GVW Booster Pump Station Specific Electrical/Requirements GVW Building Aesthetics Design Manual 3

4 2.3 Water Supply Booster Pump Station Design Guideline Component Description: 1. Pump Station Site The pump station site is to be located within a reserve in favour of the Goulburn Valley Region Water Corporation. The pump site is to be selected where a sufficient water supply is provided at peak periods for the pump to operate (water pressure and flow). Advice is to be sought from Goulburn Valley Water s Planning and Project Development Section. The site is not to be encumbered by existing or proposed overhead power lines and is to provide satisfactory coverage for monitoring and control via SCADA. The site must be accessible by vehicles by means of an all weather road. The minimum width of the access is 3 metre wide and sufficient space is to be provided for a light truck vehicle to turn and for at least 1 parking space. The surrounding area of the pump station site is to be covered with a minimum of 100mm compacted crushed rock or similar approved material to provide an all weather access to the site. The layout of the pump station must ensure that the available space for maintenance purposes is maximised. A minimum of 1 metre clearance between all assets and the reserve title boundary must be achieved. 2. Electricity Supply The capacity of the electricity supply system needs to be investigated to ensure that there is an electricity supply capable of meeting pump station loading within electricity supply regulations for both Amperage and Voltage. If a development project, then the connection to the grid is to be arranged by the consultant including the meeting of associated costs as part of the project. These include: Costs to hook into grid Expected running costs of pump annually and life time Pump wiring requirements, Generator change over ability All weather control box 4

5 2.3 Water Supply Booster Pump Station Design Guideline 3. Switchboard The electrical cabinet and switchboard is to be in accordance with the GVW Standard Specification for Switchboards. This is available upon request via to GVW General Electrical Specification GVW Booster Pump Station Specific Electrical/Requirements 4. Perimeter Fence The site perimeter is to be fenced with a 1.80m high black plastic coated chain mesh security fencing around the complete site boundary. A minimum 3m wide black plastic coated chain mesh security hinged double gate with padlock keyed is to be provided at the entrance to the site. Minimize aesthetic issues for neighbouring properties and the general public. This may require perimeter buffering planting or screens and should be investigated with Council and local residents. Please refer to the GVW Building Aesthetics Design Manual. 5. Pumps All booster pump stations that boost water supply to an elevated water supply storage tank are to equipped with 2 No. complete and identical pumpsets, (duty and standby) and are to be rated to operate in an open weather environment. The selection of the pump and the design of the inlet water main to the storage tank should minimise the pressure spike to customers to 5 metres head, if there is a single inlet/outlet pipeline to the tank. The preference is dedicated inlet and outlet water mains. The noise generated from the start, stop and running of the pumps is to be considered and must comply with EPA requirements. If noise is an issue to neighbouring properties, then sound attenuation measures, such as an enclosure should be considered. 5

6 2.3 Water Supply Booster Pump Station Design Guideline Pumps should be located adjacent to the access/parking area, so that there is unrestricted access to pumps to allow lifting as required using a small GVW crane truck. Pumps and pipework are to be secured to a suitable concrete slab, which drains surface water adequately. 6. Pump Controls The pumps are to operate on a duty call and duty stop set point from the storage tank. There is to be a telemetry (radio) link between pumps station and storage tank. Cable is not to be used when the distance between the pumps and the tanks is greater than 100m. The pumps should have an automatic changeover between the duty and standby. The preferred arrangement is for the water level in the storage tank to be relayed to the pump station, which displays all information and is connected to SCADA. 7. Pipework All pipework in the vicinity of the pumps is to be above ground and comprise flanged or welded stainless steel or flanged DICL pipework. Inlet and outlet pipes to be cast into the 100mm thick reinforced concrete slab. All below ground pipe work within the pump station site must be DICL material. 6

7 2.3 Water Supply Booster Pump Station Design Guideline 8. Electromagnetic Flow Meter A magnetic flow meter is to be installed on the discharge pipework from the pumps and located above ground. Installation must comply with the electromagnetic flow meter design guideline. The discharge flow rate is to be displayed on the electrical cabinet and also linked to SCADA, so that it can be viewed remotely. 9. Standard Drawings and Site Photos Site layout plan for Avenel Park Water Supply Booster Pump Station (JWS/2062) A post construction review of the pump station indicates the following changes should be made for future similar pump stations: Control cabinet is located between the pumps and the access. This requires any pumps to be lifted over the control cabinet for maintenance and repairs. The control cabinet could have been located at the other end of the pump slab. Aesthetics Neighbouring land owners have complained that the pump station is unsightly, and shrubs are to be planted along the frontage to the pump station. This could have been addressed during the design stage, by requesting that the developer get approval for the pump station from Council and the adjacent land owners. Please refer to GVW Building Aesthetics Design Manual Version No. Date Description Prepared by: Approved by: 1.0 Feb 2010 Original draft issue Claire Speedy Steven Nash 2.0 Mar 2010 Revised draft issue Steven Nash Bruce Anderson 3.0 Sept 2010 Revised Format Jeff Block 3.1 June 2011 Revised format Adam Glasson Michael Welk 3.2 Sept 2012 New numbering and front page design Adam Glasson Michael Welk 7

8 Water Supply Booster Pump Station Design Manual Schematic Plan: 8

9 Water Supply Booster Pump Station Design Manual Figure 1 Avenel Park Estate Site Layout Plan 9

10 Water Supply Booster Pump Station Design Manual Figure 2 - As constructed layout of the Avenel Park Estate pump and pipework 10

11 Water Supply Booster Pump Station Design Manual Figure 3 and 4 Pump Configurations Avenel Park Estate 11

12 Water Supply Booster Pump Station Design Manual Figure 5-12