Efficient and continuous blowdown expander
An expander and high-efficiency technology, which is applied in the field of boiler blowdown technology and equipment, can solve the problems that the dirt particles on the inner wall of the cylinder cannot be completely eliminated, the steam-water separation effect is poor, and the pressure at the bottom of the cylinder is large, so as to save engineering costs and installation operations. Convenience and the effect of increasing the temperature of the feed water
Inactive Publication Date: 2017-05-24
天津富斯特压力容器有限公司
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Problems solved by technology
In the existing technology, the steam-water separation effect of the continuous sewage expansion vessel is poor, and the dirt particles on the inner wall of the cylinder cannot be completely removed, and the long-term accumulation causes a large pressure on the bottom of the cylinder, which needs to be cleaned regularly
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[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides an efficient and continuous blowdown expander. The efficient and continuous blowdown expander comprises a barrel body, a first heat exchanger and a spray washing device, wherein a noncondensable gas discharge hole is formed in the top of the barrel body; a pressure measurement hole and a pressure stabilizing valve are arranged at the upper parts of the two sides of the barrel body; sewage inlets are formed in the middle parts of the two sides of the barrel body; a regular blowdown hole and a sewage outlet are formed in the bottom of the barrel body; a continuous blowdown pipe used for continuously discharging surface sewage of a flash tank is arranged in the middle of the barrel body; the first heat exchanger is arranged at the lower part of an inner cavity of the barrel body; the spray washing device comprises a plurality of layers of spray washing pipes, a water feeding pipe, a water feeding pump and a circulating water supply system; the spray washing pipes are parallelly arranged at the middle upper part of the inner cavity of the barrel body; the outer ends of the spray washing pipes communicate with one end of the water feeding pipe; the other end of the water feeding pipe is connected with the water feeding pump; and the circulating water supply system communicates with the continuous blowdown pipe through a filter valve. According to the efficient and continuous blowdown expander, the structure is simple and compact, mounting operation is convenient, the first heat exchanger is arranged in the barrel body of the flash tank, thermal energy of sewage is reasonably recycled and reutilized directly, and cleaning operation of the barrel body is simplified.
Description
technical field [0001] The invention belongs to the technical equipment field of boiler blowdown, in particular to a high-efficiency continuous blowdown expander. Background technique [0002] The continuous blowdown expander, also known as the continuous blowdown expander, is connected to the continuous blowdown outlet of the boiler. The function of the continuous blowdown expander is to expand the boiler blowdown to evaporate steam and separate the steam from the sewage. The separated steam can be recycled to the thermal system, and the non-evaporated sewage can be sent to the sewage cooler to heat and soften water, etc. The continuous blowdown expander uses the principle of flash evaporation to obtain secondary steam. After the boiler blowdown is suddenly input from the pipeline into the expansion vessel whose volume is several times larger than the pipeline, the pressure decreases and the volume increases, thereby flashing and evaporating steam. [0003] The continuous ...
Claims
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IPC IPC(8): F22B37/54
CPCF22B37/54
Inventor 刘红俊
Owner 天津富斯特压力容器有限公司