Boiler feed water system and feed water adjusting method thereof
A technology for boiler water supply and water supply, which is applied in the direction of control of water supply, supplementary water supply, preheating, etc., and can solve the problems of difficult water supply control
Active Publication Date: 2014-01-29
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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[0004] Based on this, it is necessary to provide a boiler feed water system and its feed water adjustment method for the difficult problem of feed water control
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[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided for the purpose of making the disclosure of the present invention more thorough and comprehensive.
[0029] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly un...
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Provided is a boiler feed water system. A first feed water outlet of a feed pump is connected with a high-pressure steam pocket through a high-pressure feed water pipeline, a high pressure adjusting valve is arranged on the high-pressure feed water pipeline, a second feed water outlet is connected with a middle-pressure steam pocket through a middle-pressure feed water pipeline, and the middle-pressure feed water pipeline is provided with a middle pressure adjusting valve. A communication adjusting pipeline is arranged between the high-pressure feed water pipeline and the middle-pressure feed water pipeline, the high pressure adjusting valve is arranged between the high-pressure steam pocket and the communication adjusting pipeline, the middle pressure adjusting valve is arranged between the middle-pressure steam pocket and the communication adjusting pipeline, and when the middle pressure adjusting valve is fully opened, the communication adjusting pipeline is open. Due to the fact that the pressure of the high-pressure steam pocket is larger than that of the middle-pressure steam pocket, the pressure of feed water of the feed pump is mainly in accordance with parameters of the high-pressure steam pocket. While the high-pressure steam pocket water level requirement is met, the requirement of the middle-pressure steam pocket water level is met by means of joint adjustment of the middle pressure adjusting valve and the communication adjusting pipeline. Feed water control difficulty is reduced, and the operability is good. A feed water adjusting method of the boiler feed water system is further provided.
Description
technical field [0001] The invention relates to the technical field of boiler system design, in particular to a boiler feedwater system and a feedwater adjustment method thereof. Background technique [0002] Waste heat boiler refers to a boiler that utilizes the sensible heat in waste gas, waste or waste liquid in various industrial processes or (and) the heat generated by the combustion of its combustible substances. Or in a fuel (or gas) combined cycle unit, a boiler that utilizes the heat of the high-temperature flue gas discharged from the gas turbine. [0003] Among them, the F-level gas turbine waste heat boiler is a triple-pressure waste heat boiler. The boiler drum includes a high-pressure steam drum, a medium-pressure steam drum and a low-pressure steam drum. The boiler feed water pump set includes a high-pressure feed water pump, a medium-pressure feed water pump and a low-pressure feed water recirculation Pump. For high and medium pressure feed water pumps, the...
Claims
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IPC IPC(8): F22D11/02F22D5/00
Inventor 谭灿燊吴阿峰
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD