Device for dismounting and mounting of water-feeding pump core cover of 1000MW full-capacity thermal power unit
A technology for thermal power units and feedwater pumps, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, pumps, etc., to achieve the effects of reasonable design, guaranteed accuracy, and reliable structure
Active Publication Date: 2018-12-04
POWERCHINA SPEM CO LTD
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Problems solved by technology
Therefore, the traditional method cannot satisfy the disassembly and assembly of the core package of the feed water pump of the 1000MW full-capacity thermal power unit.
Method used
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Embodiment 1
[0024] A device for removing and assembling the core package of the feedwater pump of a 1000MW full-capacity thermal power unit. The device is used to push the core package of the feedwater pump out from the front end of the cylinder of the feedwater pump. figure 1 As shown, the device includes a tugboat unit 5 arranged at the tail end of the cylinder, a multi-stage connecting bracket 4 and a multi-stage fixed sleeve 3 slidingly connected above the tugboat unit 5, and a spreader unit for suspending the core pack 1 6. When disassembling, the multi-stage fixing sleeve 3 is sleeved on the tail end of the core package 1 and fixedly connected, and the multi-stage connecting bracket 4 is fixedly connected to the tail end of the multi-stage fixing sleeve 3, and is connected through the multi-stage connection The sliding of the bracket 4 on the tugboat unit 5 pushes the suspended core pack 1 out of the cylindrical body.
[0025] The structure of the tugboat unit 5 is as image 3 , ...
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The invention relates to a device for dismounting and mounting of a water-feeding pump core cover of a 1000MW full-capacity thermal power unit. The device is used for pushing the core cover of a water-feeding pump out of the front end of a cylinder body of the water-feeding pump; and the device comprises a towing wheel unit arranged at the tail end of the cylinder body, a multi-stage connecting bracket, a multi-stage fixing sleeve, and a lifting appliance unit used for hanging the core cover in the air, wherein the multi-stage connecting bracket and the multi-stage fixing sleeve are slidably connected to the upper portion of the towing wheel unit; and during dismounting and mounting, the multi-stage fixing sleeve is arranged at the tail end of the core cover in a sleeving mode and fixedlyconnected with the tail end of the core cover, the multi-stage connecting bracket is fixedly connected to the tail end of the multi-stage fixing sleeve and slides on the towing wheel unit through themulti-stage connecting bracket, and thus the core cover hung in the air is pushed out of the cylinder body. Compared with the prior art, the device is reasonable in design and convenient to mount, thewater-feeding pump core cover can smoothly go in and out of the cylinder body under the existing limited conditions of a power plant, long-distance safe transportation of the water-feeding pump corecover is ensured, the problems encountered in the processes of assembling in a manufacturer and overhauling of the power plant are solved, and the working efficiency of the manufacturer and the powerplant is greatly improved.
Description
technical field [0001] The invention relates to the technical field of double-casing boiler feedwater pumps, in particular to a device for disassembling and assembling core packs of feedwater pumps for 1000MW full-capacity thermal power units. Background technique [0002] The high temperature and high pressure boiler feed water pump is an important auxiliary machine in a thermal power plant, and its reliability directly affects the safe operation of the power plant. According to the country's regulation policy of saving primary energy, reducing pollution discharge, and following sustainable development, higher parameter requirements are put forward for the boiler feed water pump system, and the maintenance time is as short as possible, which determines that the current feed water pumps are almost all It adopts multi-stage, double-shell, integral core-pulling package type. [0003] The entry and exit of the core pack of the feed water pump is a crucial part in the process o...
Claims
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IPC IPC(8): B23P19/00F04D29/60
CPCB23P19/00F04D29/605
Inventor 高强张江涛陈宁蔡国建徐晓峰
Owner POWERCHINA SPEM CO LTD