MODIFICATION
K -- TOWER CRANES UPGRADE PROJECT
- Notice Date
- 6/24/2009
- Notice Type
- Modification/Amendment
- NAICS
- 541990
— All Other Professional, Scientific, and Technical Services
- Contracting Office
- Department of Homeland Security, United States Coast Guard (USCG), Commanding Officer, USCG Engineering Logistics Center, 2401 Hawkins Point Road, Building 31, Mail Stop 26, Baltimore, Maryland, 21226-5000
- ZIP Code
- 21226-5000
- Solicitation Number
- 0000000
- Archive Date
- 8/28/2009
- Point of Contact
- Paul B. Premoe, Phone: 4107626078, Susanna J. Wiedmann, Phone: 410-762-6502
- E-Mail Address
-
paul.b.premoe@uscg.mil, Susanna.J.Wiedmann@uscg.mil
(paul.b.premoe@uscg.mil, Susanna.J.Wiedmann@uscg.mil)
- Small Business Set-Aside
- N/A
- Description
- Request For Information for Tower Cranes Upgrade Project General Information Document Type: Sources Sought Notice Solicitation Number:TBD Contracting Office Address USCG Engineering Logistics Center Yard Acquisition Branch (044) M/S 26, Bldg 31 2401 Hawkins Point Rd Baltimore, MD 21226 Background The Baltimore USCG Yard has a need to convert or upgrade four of its five portal cranes. All cranes are revolver cranes with main hoist, auxiliary hoist, boom hoist, travel and rotating motions. While the cranes have been well maintained, the controls are approaching the end of their useful service life. As spare parts become increasingly hard to source and as the motors, generators and controls continue to age, causing the systems on these cranes to become increasingly expensive and time consuming to maintain. The following is a brief description of the Tower Cranes: Crane # 1 was built by Clyde Iron Works in 1972 and is a motor-generator (M-G) controlled machine with individual motor generator combinations for each motion. The electrical control system controls the field current of the generators, which in turn control the armature output to the motors. Cranes # 3 & # 5, incorporate control systems from 1964 by Westinghouse, which utilizes variable reactance and variable resistance to control motor speed. The systems use 440 VAC which is a little uncommon as compared to typical three phase industrial power which uses 460/480 VAC. By the nature of the controls, they are sensitive to the incoming line voltage. Therefore, a shore power system must match the design voltage of the control system. Crane # 4 contains a modern electro-hydraulic control system from 1996 by Cornell Crane Manufacturing Ltd. This system uses AC drive for gantry motion and hydraulic motors for all other motions. The hydraulic motors are driven by one 200 hp hydraulic pump with a 40 hp charge pump and a 5 hp circulating pump. The existing generator set was recently upgraded to a Caterpillar C15 400 kW generator set which is located on the lower works. The C15 was chosen based on time constraints and it was the first available unit at the time of order. Scope of Work The objective of this Request for Information/Sources Sought Notice (RFI) is to determine the ways to meet the requirements for Shipyard Tower Crane electrical conversion and installation work, and under what terms such a contractual vehicle might be established. The USCG’s intended nature of this contract is described below. The Contractor shall furnish the detail design, all labor, materials, equipment, tools, fabrications, consumables, and installations, necessary for the retrofit project described in the following specifications. The complete system shall be a ‘turnkey’ installation. All shop fabrication and installation drawings are to be provided by and are the responsibility of the Contractor. The contractor shall convert the crane power supply from a self contained diesel generator set to shore power supplied electrical system via a cable reel system. The modernization includes, but is not limited to the following: 1. Detail design and installation of a cable reel electrical power system to take electrical power from the pier and make all necessary mechanical and electrical changes to power the crane via this cable reel system. The design shall include provision for a remote emergency power connection at the base of the crane to allow for a portable generator set to power the crane in the event of a power outage. Two of the four cranes being converted will require the addition of conductor rings to the crane cab to carry the electrical power, as the present configuration has the diesel generator set located in the cab area above the crane pivot. The remaining cranes are configured with the diesel generator set below to the pivot point and already have conductor rings in place. 2. In addition to the cable reel conversion described above, crane number one requires a replacement DC control system for operating the crane. The present system is obsolete and unsupportable. The contractor shall perform a detail design for a new DC control system based on the requirements below. The contractor shall purchase all materials and install the new control system, test in all modes, document the system, and provide technical manuals for the operation, troubleshooting and repair of the control system. The new control system will interface with the cable reel conversion described above. General Overview of Work to be Accomplished for the Crane One Control System: This specification is written around the use of DC drives supplied by shore power. DC controls would reuse the existing DC motors. The five DC generators now powering the DC motors would not be reused in a DC drive based system and will be could be removed. DC encoders will need to be installed for the hoist motions. The Contractor shall furnish all labor, materials, equipment, tools, fabrications, consumables, and installations, necessary for the retrofit project described in the following specifications. The complete system shall be a ‘turnkey’ installation. All shop fabrication and installation drawings are to be provided by and are the responsibility of the Contractor. The modernization includes, but is not limited to the following: a. Remove and replace existing control equipment that will not be reused including: diesel engine and gearbox, main, auxiliary and boom hoist controls, bridge and trolley controls, generators, non-reusable conduit, and wiring. Existing wiring that terminates in the new control system panel(s) shall not be reused. b. Purchase and install a turnkey DC drive based system with step-down / isolation transformer(s) as required. c. Purchase and install a new operator’s chair with new master switches, indicator lights and selector switches. d. Purchase and install a new 480:208V dry-type transformer and over-current protection to supply the existing lighting panel and loads now supplied by the 208VAC alternator. e. The contractor shall reuse the existing limit switches. f. The contractor shall reuse all mechanical brakes with the DC Drive upgrade. The Contractor shall be responsible for providing and installing new brake control circuitry. Any existing braking resistors shall be replaced. The answers to the questions stated under Response Instruction are requested to be addressed in the response to the RFI. The estimated cost of producing the all services and materials is also an essential part of any response to the RFI. This RFI is the first step that USCG plans to take to solicit input and interest from the vendor community and to promote competition in response to the forthcoming solicitation. Response Instructions USCG requests that responses are submitted in Microsoft Word format or if necessary, other products from the Microsoft Suite. Briefly describe your company or institution, your products, relevant past and current projects, history, ownership, financial information, the number of employees, and other information you deem relevant. Please provide points of contact, including name, address, phone/fax number, and email. You are encouraged to provide comments on the Tower Crane Upgrade Project approach. Respond only if you can provide the total solution to this project. Discuss technically feasible alternatives and provide non-binding order of magnitude cost and schedule estimates. Supplemental product brochures or marketing materials outlining specifications and capabilities may also be submitted. Furthermore, please include substantive responses to the following questions: 1) Provide feedback on our requirements. Specifically provide comments on any that you believe cannot be implemented. Describe how you would organize the requirements so that both USCG and your company can make the project feasible at a reasonable cost. 2) Identify possible constraints or potential risks. 3) Describe your firm’s Quality Assurance program. 4) Would your firm or organization be interested in giving an informational presentation to USCG? 5) Since the Yard intends to provide a new cab shell for all cranes, we need to know the following information concerning the control equipment the vendor recommends for the conversion so we can design and reserve the required space within the control cab for the control equipment and instruments. • Make and Model of all electronic control equipment and display peripherals. • Controllers and/or human input devices (HID). • Physical dimensions of any required interface junction, switch or relay boxes 6) With what types of PLC Hardware and Software does your company have experience? 7) Does your company manufacture 4 quadrant 6-12 pulse Dc Drives in the 50-100 Hp range? 8) Is your company versed in all relevant electrical specifications and standards? Please provide a detailed list. 9) Please provide a list of all types of speed and position sensors (both rotary and linear) that you have used on previous industrial crane designs or installations? 10) What is your company's experience with designing feedback control designs as applied to large DC motor driven systems and what types of design software would you be using in our application? Please list some specific design examples particularly any related to industrial crane systems. 11) Also suggest a general question(s) relating to past experience with similar our application. Disclaimer This RFI is issued for information and planning purposes only and does not constitute a solicitation. The Government does not intend to award a contract on the basis of this RFI or to otherwise pay for information received in response to this RFI. All information received in response to this RFI that is marked Proprietary will be handled accordingly. Responses to the RFI will not be returned. Information provided in response to this RFI will be used to assess tradeoffs and alternatives available for determining how to proceed in the acquisition process for the Tower Cranes Upgrade Project and may lead to the development of a specification for the Project. In accordance with FAR 15.201(e), responses to this RFI are not offers and cannot be accepted by the Government to form a binding contract. Responders are solely responsible for all expenses associated with responding to this RFI. Contact Information Paul Premoe, Contract Specialist, Phone (410) 762-6078, Fax (410) 762-6095, Email: paul.b.premoe@uscg.mil Please submit responses via email not later than 4:00 PM on 07/24/2009 to paul.b.premoe@uscg.mil. The subject of the email should be "Tower Cranes Upgrade RFI". Submit any supplemental hardcopy materials or electronic materials on hard media (CD, diskette), to: USCG Engineering Logistics Center, Yard Acquisition Branch (044), ATTN: Paul Premoe at M/S 26 BLDG 31, 2401 Hawkins Point Road, Baltimore, MD 21226-5000.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DHS/USCG/USCGELC/0000000/listing.html)
- Place of Performance
- Address: 2401 Hawkins Point Road, Baltimore, Maryland, 21226-5000, United States
- Zip Code: 21226-5000
- Zip Code: 21226-5000
- Record
- SN01855805-W 20090626/090625001106-c6ee150a2d62713447696c29b0bc1d06 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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