Circulating water supply system
A technology of water supply system and circulating water, which is applied in the direction of water supply pipeline system, water supply device, water supply device, etc. It can solve the problems of unit tripping, poor economy, and inability to back up each other, and achieve the effects of improving economy, convenient use, and ingenious design
Pending Publication Date: 2018-10-30
国能广投柳州发电有限公司
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Problems solved by technology
[0002] At present, the conventional layout of the circulating water system of a thermal power plant is that one unit is equipped with two circulating water pumps, two units are equipped with four circulating water pumps, the circulating water pump is a fixed-speed pump, and the circulating water systems of the two units are independent of each other. This arrangement has the following Disadvantages: the circulating water systems between the units are independent of each other and cannot be backed up by each other. After the circulating water pump fails, the unit will trip and the reliability is poor; the circulating water pump is a fixed-speed pump, and the circulating water volume cannot be adjusted according to the load of the unit. Personnel provide a kind of circulating water water supply system, to solve the problem proposed in the above-mentioned background technology
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[0017] see Figure 1~3 , in an embodiment of the present invention, a circulating water supply system includes a first cooling tower 1, a controller 17 that controls the entire system is installed on the front surface of the first cooling tower 1, and the first cooling tower 1- The side is embedded with a first water inlet pipe 2, and one end of the first water inlet pipe 2 is connected with a rectangular first circulation pipe 5, and the upper part of the first circulation pipe 5 is connected with a B circulation water pump 4 at the middle position, and The lower part of the first circulation pipe 5 is connected with the A circulation water pump 3 corresponding to the position of the B circulation water pump 4, and one end of the first circulation pipe 5 is connected with the first water outlet pipe 6, and one end of the first water outlet pipe 6 is connected with the first water outlet pipe 6. The unit 7, and one side of the first outlet pipe 6 is connected to the second out...
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The invention discloses a circulating water supply system which comprises a first cooling tower, wherein a controller capable of achieving an effect of controlling the complete set of system is mounted on the front surface of the first cooling tower; one side of the first cooling tower is embedded and connected with a first water inlet pipe; one end of the first water inlet pipe is connected witha first rectangular circulating pipe; and a circulating water pump B is arranged on the upper part of the first circulating pipe and positioned at the middle section. The circulating water supply system disclosed by the invention is ingenious in design, simple in structure, convenient to use and capable of saving energy and reducing consumption, a connection pipeline and an electric valve are added, the dual-unit operation is realized, and the water inlet pipe and the water outlet pipe of the circulating water system are opened. Due to the connection pipeline and the electric valve, the circulating water systems of the two units are connected together for later use, the problem that the circulating water reliability is poor is solved, an inner motor of the circulating water pump adopts a high / low dual-speed motor, multiple operating manners can be realized according to the load and water temperature of the unit, and the economical efficiency of the circulating water system is improved.
Description
technical field [0001] The invention relates to the technical field of circulating water systems in thermal power plants, in particular to a circulating water supply system. Background technique [0002] At present, the conventional layout of the circulating water system of a thermal power plant is that one unit is equipped with two circulating water pumps, two units are equipped with four circulating water pumps, the circulating water pump is a fixed-speed pump, and the circulating water systems of the two units are independent of each other. This arrangement has the following Disadvantages: the circulating water systems between the units are independent of each other and cannot be backed up by each other. After the circulating water pump fails, the unit will trip and the reliability is poor; the circulating water pump is a fixed-speed pump, and the circulating water volume cannot be adjusted according to the load of the unit. People provide a circulating water supply syste...
Claims
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IPC IPC(8): E03B1/02E03B7/02E03B11/12E03B5/00
CPCE03B1/02E03B5/00E03B7/02E03B11/12
Inventor 何玉峰
Owner 国能广投柳州发电有限公司