Horizontally-arranged periodic blow-down flash tank

A technology of regular sewage discharge and container expansion, which is applied in the direction of boiler cleaning equipment, etc., can solve problems such as equipment shell erosion, achieve the effect of prolonging service life and avoiding direct erosion

Inactive Publication Date: 2013-09-04
苏州市中衡压力容器制造有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional boiler sewage is regularly discharged into the sewage expansion vessel, and part of the sewage is immediately vaporized into secondary steam. The discharge of the water level regulating valve is easy to cause erosion to the equipment shell

Method used

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  • Horizontally-arranged periodic blow-down flash tank

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a horizontal periodic sewage discharge expansion container has a shell 1, a sewage inlet pipe 2 is installed on the top of the shell 1, the top opening of the sewage water intake pipe 2 is the boiler periodic sewage discharge inlet, and the bottom of the shell 1 has a sewage discharge port 6 The inner cavity of the housing 1 is equipped with a spray energy dissipation device, the bottom opening of the sewage inlet pipe 2 communicates with the inlet of the spray energy dissipation device, and the top of the housing 1 is provided with a secondary steam discharge port 5 .

[0017] The spray energy dissipating device has a spray pipe 3, the bottom opening of the sewage inlet pipe 2 communicates with the top opening of the spray pipe 3, and the bottom of the spray pipe 3 is provided with a plurality of evenly arran...

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Abstract

The invention discloses a horizontally-arranged periodic blow-down flash tank which cannot cause washout to a shell body easily. The horizontally-arranged periodic blow-down flash tank is provided with a shell body, the top of the shell body is provided with a sewage inlet pipe, the opening in the top of the sewage inlet pipe is a boiler periodic blow-down inlet, a spraying energy dissipater is installed in the inner cavity of the shell body, an opening in the bottom of the sewage inlet pipe is communicated with an inlet of the spraying energy dissipater, and a secondary steam discharge outlet is formed in the top of the shell body. The spraying energy dissipater is provided with a spraying pipe, the opening in the bottom of the sewage inlet pipe is communicated with an opening in the top of the spraying pipe, and a plurality of spraying holes which are arrayed evenly are formed in the bottom of the spraying pipe. A steam-water separating device is installed on the upper portion of the inner cavity of the shell body, and the steam-water separating device is installed on the bottom of the secondary steam discharge outlet and is communicated with the secondary steam discharge outlet. High-temperature high-pressure boiler blow-down water enters the spraying energy dissipater through the sewage inlet pipe, the flow direction of sewage is changed through the spraying energy dissipater, direct washout of the high-temperature high-pressure boiler blow-down water to the shell body of equipment is avoided, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to a horizontal periodic blowdown expansion vessel. Background technique [0002] The horizontal periodic blowdown expansion vessel is mainly a device for expanding the volume and reducing the pressure, cooling down and separating the secondary steam of the periodic blowdown of the boiler. [0003] The boiler blowdown water has the same working pressure as the boiler and the saturated water temperature under the pressure (high temperature and high pressure). It is necessary to use a regular blowdown expansion vessel to expand the boiler blowdown water, reduce the temperature, and separate the secondary steam and waste hot water. The secondary steam and waste hot water are used as heat sources to recover part of the heat lost by boiler blowdown and improve boiler efficiency. Conventional boiler sewage is regularly discharged into the sewage expansion vessel, and part of the sewage is immediately vaporized into secondary steam. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/54
Inventor 徐伟钱季春尤江英潘晓李刚
Owner 苏州市中衡压力容器制造有限公司
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