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Drainage dead steam recovery system

A technology for the recovery and hydrophobicity of exhausted steam, which is applied in the field of drainage exhausted steam recovery system, which can solve the problems such as the inability to realize the utilization of heat energy of water flow.

Active Publication Date: 2021-05-18
宁波明州热电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the actual use of the exhaust steam recovery system of the above-mentioned drain expander, the drain tank is connected to the external circulating water pipe network and the water supply pipe network, which can only make use of the recovered drain water flow, but cannot realize the utilization of the water flow belt. Utilization of some heat energy

Method used

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  • Drainage dead steam recovery system
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Experimental program
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Embodiment 1

[0032] A kind of hydrophobic exhaust steam recovery system, refer to figure 1 , including the hydrophobic expander 1, the hydrophobic tank 2 and the deaerator 3.

[0033] A plurality of water inlets are provided on the hydrophobic expansion vessel 1, and the water inlets on the hydrophobic expansion vessel 1 are respectively connected to a plurality of external drainage pipe groups 4, and the drainage pipe group 4 includes a main pipe 41 for removing oxygen and overflowing water, a main pipe for removing oxygen and releasing water, chemical Replenishing water 42, oxygen removal and drainage 43, drainage and water supply 44, high-pressure regular drainage 45, biomass second-stage low-pressure drainage 46, biomass second-stage high-pressure drainage 47, and boiler SCR drainage 48. The above-mentioned hydrophobic pipe sets 4 are all connected to the hydrophobic expansion vessel 1 , and regulating valves are arranged between the hydrophobic expansion vessel 1 and the hydrophobic e...

Embodiment 2

[0040] A kind of hydrophobic exhaust steam recovery system, the difference with embodiment 1 is that, with reference to figure 2 , the bottom of the steam return pipe 12 is provided with a steam return branch pipe 13, the steam return branch pipe 13 is provided with a gate valve three 131, the air inlet of the steam return branch pipe 13 is connected with one of the steam outlets of the steam return pipe 12, and The gas outlet is connected to the bottom of the drain tank 2, and the top of the drain tank 2 is provided with a heating steam pipe 14 connected to the heating steam main pipe 5 of the deaerator. The heating steam pipe 14 is provided with a gate valve four 141. In this embodiment, the steam return branch pipe 13 is also made of magnetic materials.

[0041] When the temperature of the steam in the steam return pipe 12 is high, the gate valve three 131 is closed, and the steam enters the deaerator 3 directly through the steam return pipe 12 to realize the heating of t...

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Abstract

The invention discloses a drainage dead steam recovery system. The drainage dead steam recovery system comprises a drainage flash tank, a drainage tank and a deaerator, wherein the drainage flash tank is provided with a plurality of water inlets; the water inlets of the drainage flash tank are connected respectively; the bottom of the drainage flash tank is provided with a water outlet; the water outlet is connected with the drainage tank; the drainage tank is connected with a drainage pump; a water outlet of the drainage pump is connected with a water inlet in the deaerator; and the deaerator is connected with a deaerator heating steam main pipe used for conveying heating steam into the deaerator. The drainage dead steam recovery system has the effect of improving the utilization rate of drainage internal heat energy.

Description

technical field [0001] The present application relates to the technical field for returning condensed water to a boiler, in particular to a drain steam recovery system. Background technique [0002] At present, the drain steam recovery system is a system for recovering drain and exhaust steam. [0003] The Chinese utility model with the authorized announcement number CN206439810U discloses a exhaust steam recovery system for a drain expander, the system includes a drain expander, a heater exhaust steam recovery device, a drain tank and a drain pump, the drain expander and the deaerator exhaust steam The exhaust steam recovery device of the heater is provided with a desalinated water inlet, a exhaust steam inlet and a hot water outlet, and a mixing chamber is arranged inside the exhaust steam recovery device of the heater, and the desalted water inlet, exhaust steam inlet and hot water outlet are all mixed with the The desalinated water inlet is connected to the main pipe of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/50F22D1/50
CPCF22B37/50F22D1/50
Inventor 王永亮
Owner 宁波明州热电有限公司