电动葫芦起重机参数(英文).doc

3.15 Hoisting Equipment3.15.1 Scope of supply and design parameters1. The tenderer should be according to the requirements on provide the equipment the engineering needed, including the travel mechanism and hoisting equipment, such as: mainframe, motor, electrical block, wire cable, fixed part, accessories, matched electric cable etc., it should be guaranteed the design, manufacture, check, inspection and so on of above mentioned equipment should comply the code requirement; meanwhile the tenderer should provide corresponding site service, including the installation guidance and adjustment of the hoisting equipment.Electric mono-spar suspension hoist crane technical performance listInstallation siteRoom of grill screenRoom of chemical addingRoom of filter basinTypeElectric hoistElectric hoistElectric hoistQuantity111PurposeEquipment overhaulEquipment overhaulEquipment overhaulRated load weight (t)333Hoisting height (m)12612Mode of operationGround operationGround operationGround operation3.15.2 Technical Requirements1. In order to guarantee the standardization of the products on the aspects of operation, maintenance and spare parts, requiring all the equipment and component of same type should be the products of the same manufacturer as possible. All the electric-drive hoisting equipment should set power switch on the ground.2. All equipment and product should have performance inspection before ex works; the tenderer should provide the following: ex works product certificate of inspection, approved certificate for product, product instruction, packing list, and list of accessories and spare parts.3. All the electric driving device of the hoisting equipment should be complete matched by the hoisting equipment manufacturer, to make it form complete hoisting equipment.3.15.2 Material to be submittedThe tenderer should submit the following information, but not limited to the following: (1) The concerned technical data and electric schematic diagram of electric machine and electricity; (2) Installation instruction, equipment operation and service manual; (3) Qualification certificate of manufacturer and achievement; (4) Bidding technicality description (design, structure, material etc.) and sample editing; (5) Manufacturing and quality assurance measures; (6) Debugging and detection requirement before test-run; (7) Submitting five users certificates of successful operation running domestically in recent five years; (8) The hoisting equipment manufacturing license issued by Domestic Labor Department;3.15.3 Basic requirements1. Reference standardsThe design, manufacture, inspection, packaging, transportation and installation process of the product should be consistent with ISO, IEC international standards and the equivalent standards such as GB, JB, JIS, DIN, ANCI, etc. (These standards should be the updated standards that are not be invalidated) ) 2. Other technical requirements (1)The hoisting equipment supplied by the tenderer should include the electric mono-spar suspension hoist crane, electrical block and the concerned accessories for connection.(2)The complete electric motor and the speed reducer should be supplied by the manufacturer in the form of complete and matching.(3)The equipment failure free operation time should not be less than 10,000 hours; the electric apparatus service life should not be less than 3 years, the speed reducer and bearing service life should be 10 years, the coating service should be over 5 years; the complete machine service life should be more than 25 years.(4)Anti-corrosion of equipment: the surface de-rusting grade of all carbon steel components should comply with the Sa2.5 grade standard stipulated in GB8923-88(5)The manufacturer should provide 1 set special tools and spare parts for the equipment installation and maintenance.(6)Nameplate and LabelIt should be fastened for All equipment with the stainless steel nameplate of following technical specification contents: Number, Model, Power, main technical parameter, weight, manufacturer, date of manufacture etc.(7)Material and ProcessAll materials must be the high quality material with indicated grade and species, these should be the newest material used by the manufacturer, not the rejected into disuse, and the manufacturing process should be the contemporary optimality criteria.(8)The tenderer should be in charge to guide the installation of the equipment, to accomplish the debugging work of the equipment within the period stipulated by the construction party.3.15.4 Structural requirements(1)Traveling Mechanism BodyThe body is rigid structure, forbidden any abnormal bend.The traveling mechanism driving relies on the electric motor through speed reducer to drive the trolleys driving shaft.The mono-spar body should have a roller stabilizer, to prevent the traveling mechanism from incline during operation.The material of the traveling mechanism wheel is steel rolling or forged steel heat treated; the hardness of the tread of the wheel should be at 200 Brinell at least.After refining process and burnishing, the wheel axle material can assembly the inner bearing washer.When using the rotation axis, the wheel should install the contractor and key, or install the key only.All the gears are spiral tooth, straight tooth or herringbone tooth, the gear wheel is manufactured of steel rolling or cast iron, and process it to be 20 pressure intermeshing angle.The bearing is the radial and thrust, double bank, angular contact ball bearing, or the double bank thrust type roller bearing. Before installation the bearing should be lubrication and sealing; the brake of the traveling mechanism should be assembled according to the stipulated working grade, the traveling mechanism should be matched with ripple damper(2)Electrical blockThe machine parts of the electrical block are composed by the winding drum, driving equipment, load box, hook, steel cable, pulley and brake.When the hook is at the lowest position, on winding drum there are at least 2 loop of steel cable. The winding drum size and steel cable length should be confirmed according to the design drawings.The load box adopts the enclosed type to have interference prevention.The steel cable should have enough flexibility and toughness.There should be enough toughness, when overload, before failure the hook should be with enough degree of freedom.Under rated load, the hook can turn 360.The crane should be matched with electric brake and mechanical braking, it can be adjusted so as to compensate wear-out.(3)Power EquipmentThe crane manufacturer should install the electric device on the crane including the electric motor, electric motor starter, suspension control and conduit etc.The electric motor is squirrel cage type, under the condition of full load, with low start current and high start torque. Each phase of the AC electric motor should have overload relay.The rail conductor should be trolley line type. As the deviation of designed voltage of the building system is 5%, the track and traveling mechanism conductor from motor track power supply of control crane to operation the deviation is 10%.The sliding conductor is composed by galvanized steel strip encapsulated in the insulation material box, the relay is slide block style with pressing out spring. The hoister should be equipped with controller of momentary contact button, whenever any electric cable is