CN204111502U - The horizontal split type membrane deaerator of nuclear power conventional island - Google Patents
The horizontal split type membrane deaerator of nuclear power conventional island Download PDFInfo
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- CN204111502U CN204111502U CN201420423061.4U CN201420423061U CN204111502U CN 204111502 U CN204111502 U CN 204111502U CN 201420423061 U CN201420423061 U CN 201420423061U CN 204111502 U CN204111502 U CN 204111502U
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- deoxygenation
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- removing tower
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Abstract
The utility model discloses the horizontal split type membrane deaerator of a kind of nuclear power conventional island, it comprises oxygen-removing tower and deoxygenation water tank, wherein, oxygen-removing tower and deoxygenation water tank are horizontal, oxygen-removing tower is provided with water inlet pipe, one-level deoxygenation assembly and secondary deoxygenation assembly, one-level deoxygenation assembly comprises two dividing plates fitted together, be welded on rotation membrane pipe on dividing plate and double fluid communicating pipe, secondary deoxygenation assembly comprises filler, the trickle comb group be arranged on filler, and filler and trickle comb group are fixed in oxygen-removing tower by packing fixing device; Deoxygenation water tank is provided with steam-distributing pipe, and steam-distributing pipe is connected by bottom breather pipe and oxygen-removing tower, and deoxygenation water tank water outlet is provided with discharging device.Deoxygenation water tank is provided with T-shaped stiffening ring and boosting vapour pipe.Compact construction, not only can save space, and also can save a large amount of installations, operation and the cost of overhaul, oxygen removal efficiency is high, stable, long service life.
Description
Technical field
The utility model belongs to deoxygenator, is specifically related to the horizontal split type membrane deaerator of a kind of nuclear power conventional island.
Background technology
In nuclear power conventional island system, be that main body can shorten the work-ing life of equipment greatly to the effect of heat power equipment corrosion of metal with oxygen, reduce the reliability of equipment, even cause uncertain accident.Therefore, removing to oxygen in water is the important process guaranteeing heat power equipment safety, economical operation.Current application is comparatively extensive, deaerating effect is preferably membrane deaerator, and traditional product mostly is vertical type deaerator, along with the increase of unit, requires that oxygen scavenging ability strengthens, and equipment size increases, and causes equipment civil engineering factory building height to increase, and cost increases.And horizontal split type membrane deaerator is except possessing vertical advantage, also can reduce facility investment, reduce factory building height.
Present fired power generating unit mostly is more than 300MW, original vertical structure can not meet the needs of civil engineering, main employing is horizontal now, and the horizontal type deaerator on market mostly is spraying trickle disc type, deaerating effect is not very good, therefore seldom adopts, and membrane type technology has been the main flow of present deoxygenation technology, so developing horizontal split type membrane deaerator will have wide market.
Summary of the invention
In order to overcome the above-mentioned defect that prior art field exists, the purpose of this utility model is, there is provided a kind of nuclear power conventional island horizontal split type membrane deaerator, compact construction, not only can save space, also can save a large amount of installations, operation and the cost of overhaul, oxygen removal efficiency is high, stable, long service life.
The horizontal split type membrane deaerator of the nuclear power conventional island that the utility model provides, it comprises oxygen-removing tower and deoxygenation water tank, connected by aperture pipeline between oxygen-removing tower and deoxygenation water tank, wherein, oxygen-removing tower and deoxygenation water tank are horizontal, oxygen-removing tower is provided with water inlet pipe, one-level deoxygenation assembly and secondary deoxygenation assembly, one-level deoxygenation assembly comprises two dividing plates fitted together, be welded on the rotation membrane pipe on dividing plate and double fluid communicating pipe, secondary deoxygenation assembly comprises filler, be arranged on the trickle comb group on filler, filler and trickle comb group are fixed in oxygen-removing tower by packing fixing device, filler is Ω type Stainless Steel Cloth, deoxygenation water tank is provided with steam-distributing pipe, and steam-distributing pipe is connected by bottom breather pipe and oxygen-removing tower, and deoxygenation water tank water outlet is provided with discharging device.Deoxygenation water tank is provided with T-shaped stiffening ring and boosting vapour pipe.
The horizontal split type membrane deaerator of the nuclear power conventional island that the utility model provides, its beneficial effect is, employing rotation membrane pipe deaerating effect is good, efficiency is high; The T-shaped stiffening ring be provided with in deoxygenation water tank, to improve the rigidity of water tank, can reduce device thickness simultaneously, reduce laid down cost; Auxiliary steam heating tube is set in deoxygenation water tank, both can realizes deoxygenator started quickly at low temperature, can supplement in deoxygenator normally runs again and improve water temperature; Deoxygenation water tank sets out water device, can prevent impurity from entering service pump, and can prevent water outlet from forming whirlpool; Deaerator Structure is compact, not only can save space, and also can save a large amount of installations, operation and the cost of overhaul, oxygen removal efficiency is high, stable, long service life.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the utility model embodiment.
Mark in figure:
1. oxygen-removing tower; 2. deoxygenation water tank; 3. dividing plate; 4. rotation membrane pipe; 5. double fluid communicating pipe; 6. water inlet pipe; 7. filler; 8. trickle comb group; 9. packing fixing device; 10. steam-distributing pipe; 11. breather pipes; 12. discharging devices; 13. stiffening rings; 14. auxiliary steam heating tubes.
Embodiment
With reference to the accompanying drawings, in conjunction with an embodiment, the nuclear power conventional island that the utility model provides is described in detail with horizontal split type membrane deaerator.
Embodiment
With reference to Fig. 1, the horizontal split type membrane deaerator of nuclear power conventional island of the present embodiment, it comprises oxygen-removing tower 1 and deoxygenation water tank 2, connected by aperture pipeline between oxygen-removing tower 1 and deoxygenation water tank 2, wherein, oxygen-removing tower 1 and deoxygenation water tank 2 are horizontal, oxygen-removing tower 1 is provided with water inlet pipe 6, one-level deoxygenation assembly and secondary deoxygenation assembly, one-level deoxygenation assembly comprises two dividing plates fitted together 3, be welded on the rotation membrane pipe 4 on dividing plate 3 and double fluid communicating pipe 5, secondary deoxygenation assembly comprises filler 7, be arranged on the trickle comb group 8 on filler 7, filler 7 and trickle comb group 8 are fixed in oxygen-removing tower 1 by packing fixing device 9, filler 7 is Ω type Stainless Steel Cloth, deoxygenation water tank 2 is provided with steam-distributing pipe 10, and steam-distributing pipe 10 is connected with bottom oxygen-removing tower 1 by breather pipe 11, and deoxygenation water tank 2 water outlet is provided with discharging device 12.Deoxygenation water tank is provided with T-shaped stiffening ring 13 and boosting vapour pipe 14.
Low temperature feedwater enters one-level deoxygenation assembly through water inlet pipe 6, from the little hole deviation churning of rotation membrane pipe 4 in rotation membrane pipe 4 under certain differential pressure of water level, form jet, owing to being filled with the heating steam of rising in rotation membrane pipe 4, a large amount of heating steam entered from steam-distributing pipe 10 is just inhaled and is involved in by water in jet motion; The stroke that very short time is very little produces violent Hybrid Heating effect, water temperature increases substantially, and the water rotated continues backspin along film pipe orifice wall, form the water membrane skirt of one deck rolling, now the heat transfer water mass transfer effect of turbulent state is the most desirable, major part oxygen is removed, and completes first oxygen removal process.Deaerated water after a deoxygenation, after secondary deoxygenation assembly carries out secondary distribution, contacts with filler 7, and water forms moisture film state on packing layer surface, completes second oxygen removal process with the steam by upwards flowing in packing layer with the contact of water.Service pump is entered through discharging device 12 after the water of deoxygenation enters deoxygenation water tank 2.When load rejection, cold water directly can be delivered to water outlet, effectively prevent service pump cavitation.
When water temperature is low, boosting vapour pipe 14 can be enabled, heating be continued to water in water tank, has the further precipitation utilizing free oxygen.
Claims (3)
1. the horizontal split type membrane deaerator of nuclear power conventional island, it comprises oxygen-removing tower and deoxygenation water tank, connected by aperture pipeline between oxygen-removing tower and deoxygenation water tank, it is characterized in that: oxygen-removing tower and deoxygenation water tank are horizontal, oxygen-removing tower is provided with water inlet pipe, one-level deoxygenation assembly and secondary deoxygenation assembly, one-level deoxygenation assembly comprises two dividing plates fitted together, be welded on the rotation membrane pipe on dividing plate and double fluid communicating pipe, secondary deoxygenation assembly comprises filler, be arranged on the trickle comb group on filler, filler and trickle comb group are fixed in oxygen-removing tower by packing fixing device, deoxygenation water tank is provided with steam-distributing pipe, and steam-distributing pipe is connected by bottom breather pipe and oxygen-removing tower, and deoxygenation water tank water outlet is provided with discharging device.
2. the horizontal split type membrane deaerator of nuclear power conventional island according to claim 1, is characterized in that: deoxygenation water tank is provided with T-shaped stiffening ring and boosting vapour pipe.
3. the horizontal split type membrane deaerator of nuclear power conventional island according to claim 1, is characterized in that: filler is Ω type Stainless Steel Cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423061.4U CN204111502U (en) | 2014-07-30 | 2014-07-30 | The horizontal split type membrane deaerator of nuclear power conventional island |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423061.4U CN204111502U (en) | 2014-07-30 | 2014-07-30 | The horizontal split type membrane deaerator of nuclear power conventional island |
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| CN204111502U true CN204111502U (en) | 2015-01-21 |
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| CN201420423061.4U Active CN204111502U (en) | 2014-07-30 | 2014-07-30 | The horizontal split type membrane deaerator of nuclear power conventional island |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180147A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Deoxidizing equipment for thermal power unit of thermal power plant |
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2014
- 2014-07-30 CN CN201420423061.4U patent/CN204111502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180147A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Deoxidizing equipment for thermal power unit of thermal power plant |
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| GR01 | Patent grant |