CN102022720A - Water-supply capacity-expansion deaerator - Google Patents
Water-supply capacity-expansion deaerator Download PDFInfo
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- CN102022720A CN102022720A CN2010105259724A CN201010525972A CN102022720A CN 102022720 A CN102022720 A CN 102022720A CN 2010105259724 A CN2010105259724 A CN 2010105259724A CN 201010525972 A CN201010525972 A CN 201010525972A CN 102022720 A CN102022720 A CN 102022720A
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Abstract
The invention discloses a water-supply capacity-expansion deaerator, which comprises a flashing head, a deoxidizing head, a shower pipe and a deoxidizing water tank, wherein a water inlet, a heating steam outlet and a saturated water outlet are formed on the flashing head; the deoxidizing head and the flashing head are arranged in parallel, and a heating steam inlet and a condensed water inlet are formed on the deoxidizing head; the heating steam outlet is connected to the heating steam inlet by a pipeline, and the saturated water outlet is connected to the shower pipe by the pipeline; the shower pipe is adjacent to the condensed water inlet of the deoxidizing head and is provided with at least three joints, a first joint is connected to the saturated water outlet, a second joint is connected to a condensed water water-supply pipe, and a third joint is connected to the condensed water inlet by the pipeline; and the deoxidizing water tank is communicated with the bottom of the deoxidizing head by the pipeline.
Description
Technical field
The present invention relates to a kind of oxygen-eliminating device, particularly a kind of feedwater expanding type oxygen-eliminating device.The invention belongs to glass kiln cogeneration key equipment, and be applicable to and require waste heat boiler discharging exhaust temperature height, the glass that SOX content is high in the tail gas and other industrial production enterprise.
Background technology
The energy that glass production consumption is a large amount of, domestic 400 commonplace～900t glass metal/the d production scale is an example with at present, and the design hear rate is about the 6908kJ/kg glass metal, and power consumption is 250kWh/t, and it is higher in design parameter that actual production is also wanted.Three big Thermal Equipments of glass production: the waste heat recoverable amount that molten kiln, molten tin bath, annealing kiln produced is bigger, this shows, efficiently utilizes waste heat in the glass production to become the effective way of present reduction glass production comprehensive energy consumption.
In afterheat generating system, in order to guarantee the feedwater water quality requirement of waste heat boiler, prevent heat power equipment and Corrosion of Pipeline thereof, must remove dissolved oxygen and other gases in boiler feedwater.Oxygen-eliminating device is exactly the conventional oxygen in water of removing, and improves the heat power equipment of water quality.Deoxygenation mode commonly used is divided into chemical dosing deoxygenation, thermal deaerator deoxygenation and vacuum dust cather deoxygenation.Therefore select a kind of deoxygenation mode of suitable production line waste heat boiler, particularly important concerning whole afterheat generating system, not only reach the requirement of removing dissolved oxygen in water, and help the production line residual heat resources are utilized fully.
First kind is chemical deoxidizing, and this method can only be removed the oxygen in anhydrating, but can not well remove other gases such as carbon dioxide, nitrogen etc., and oxidation product can increase the salt content of feedwater, moreover the drug price costliness, therefore be first-selection.The two kinds of methods in back belong to the physics deoxidizing together, but the air suspended type oxygen-eliminating device has relatively high expectations to inlet water temperature, owing to do not establish low-pressure heater in the system, the pump discharge feed temperature that therefore condenses is difficult to satisfy its job requirement, causes deaerating effect not good.
This project is intended to according to glass industry waste gas SO
XThe characteristics that content is high need exhaust gas temperature is controlled at more than 180 ℃, and unnecessary low-temperature flue gas is developed the feedwater expanding type oxygen-eliminating device that a kind of oxygen content that can satisfy the Industrial Boiler water standard requires therefore to utilize the burner hearth afterbody.Make full use of fume afterheat on the one hand, the consumption of the steam of avoiding conventional thermal deaerator on the other hand and being brought and the increase of firing equipment, regular maintenance and equipment investment expense are also lower in addition, and reliable working performance has important practical sense for the development of UTILIZATION OF VESIDUAL HEAT IN.
Summary of the invention
Purpose of the present invention is to provide a kind of feedwater expanding type oxygen-eliminating device at the defective of prior art, when feedwater expanding type oxygen-eliminating device of the present invention is introduced cogeneration with this most effective at present deoxygenation mode of thermal de-aeration, changed the heating steam source (original heating is steamed the deoxygenation that comes from steam turbine and drawn gas) of former thermal de-aeration.This invention will make full use of the residual heat resources of production line on the one hand more, promptly use the production line waste heat as oxygen-eliminating device heating steam thermal source; Simplify on the other hand and integrated equipment, integration system makes the functionalization modularization further improve equipment.
To achieve these goals, expanding type oxygen-eliminating device of the present invention is made up of flash distillation head, deoxygenation head, deoxygenation water tank, shower and pipe fitting valve.Wherein enter the flash distillation head, flash off indirect steam after the dilatation, introduce the deoxygenation head by pipeline deoxygenation is heated in feedwater from waste heat boiler hot water section water outlet.Saturation water after the flash distillation causes the oxygen-eliminating device import by pipeline valve evenly to be mixed with feedwater from condensate pump; The indirect steam that flashes off heats deoxygenation to the condensate water from condensate pump in the deoxygenation head; Saturation water after the flash distillation and condensate water are carried out tentatively mixed, thereby improve a deoxygenation inflow temperature, and this function can replace the high and low pressure heater in the former thermal de-aeration system.
Feedwater expanding type oxygen-eliminating device adopts integral structure, flash distillation head and deoxygenation head are arranged in juxtaposition, flash distillation water enters the flash distillation head and flashes off indirect steam and be attached to a deoxygenation heating steam import by pipeline, valve, and a flash distillation hypomere is not communicated with the deoxygenation water tank, is the separate equipment unit.Saturation water after the flash distillation fully mixes with condensate water before the condensate water import of deoxygenation head by the control valve group, and the condensed water in high temperature after mixing enters the condensate water import of deoxygenation head and carries out deoxygenation, and the condensate water after the deoxygenation enters the deoxygenation water tank.The deoxygenation water outlet of water tank connects boiler feed pump, for boiler provides qualified feedwater.
In other words, the invention provides a kind of feedwater expanding type oxygen-eliminating device, comprising: the flash distillation head, it is provided with water inlet, heating steam outlet and saturation water outlet; The deoxygenation head, itself and described flash distillation head are arranged in juxtaposition, described deoxygenation head is provided with heating steam import and condensate water import, and wherein said heating steam outlet is connected to described heating steam import by pipeline, and described saturation water outlet is connected to shower by pipeline; Shower, it is arranged near the described condensate water import of described deoxygenation head, described shower has at least three joints, wherein first joint is connected to described saturation water outlet by pipeline, second joint is connected to the condensate water feed pipe, and the 3rd joint is connected to the condensate water import of described deoxygenation head by pipeline; The deoxygenation water tank, its bottom by pipeline and described deoxygenation head is connected.
Preferably, feedwater expanding type oxygen-eliminating device of the present invention also is provided with at least one hydrophobic valve between the saturation water outlet of wherein said flash distillation head and the described shower.
Preferably, feedwater expanding type oxygen-eliminating device of the present invention, the water inlet of wherein said flash distillation head is connected to waste heat boiler hot water section delivery port.
Preferably, feedwater expanding type oxygen-eliminating device of the present invention, wherein said deoxygenation water tank also has a delivery port, and the delivery port of deoxygenation water tank is connected to boiler feed pump by pipeline.
Preferably, feedwater expanding type oxygen-eliminating device of the present invention also is provided with at least one hydrophobic valve between the described heating steam outlet of wherein said flash distillation head and the described heating steam import of described deoxygenation head.
The invention has the beneficial effects as follows: feedwater expanding type oxygen-eliminating device with thermal de-aeration this when the most effectively deoxygenation mode is introduced cogeneration at present, utilize flash-off steam to replace the heating steam source (original heating is steamed the deoxygenation that comes from steam turbine and drawn gas) of former thermal de-aeration thus avoid the waste of residual heat resources.Flash distillation and deoxygenation are organically combined, the steam of flash distillation is as the heating steam of deoxygenation, hot water after the flash distillation mixes with low-temperature condensate, thereby play the purpose that improves the oxygen-eliminating device inflow temperature and cancelled original high and low pressure heater, learn from other's strong points to offset one's weaknesses, thereby the simplification system reduces design, construction period, the investment of minimizing system.
Description of drawings
Fig. 1 is the structural representation of invention.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing, can implement according to this with reference to the specification literal to make those skilled in the art.
As shown in Figure 1, flash distillation 2 and deoxygenation 3 is provided with side by side, and wherein flash distillation 2 is provided with water inlet, and this water inlet is connected to waste heat boiler hot water section delivery port so that waste heat boiler hot water section water outlet enters flash distillation 2, thereby flashes off indirect steam after dilatation.
The indirect steam that flashes off is connected to the heating steam import 13 that is provided with in the deoxygenation 3 by heating steam outlet 11 through piping.Simultaneously the saturation water after the flash distillation flows out by the saturation water outlet 12 that is arranged on flash distillation 2 bottom, flow on first joint 8 that is arranged on the shower 5 by pipeline and the valve 1 that is arranged between flash distillation 2 and the deoxygenation 3 again.Wherein since shower be arranged on deoxygenation 3 near, therefore, first street corner 8 also is positioned near the condensate water import 7 that is provided with in the deoxygenation 3.Also be provided with second joint 9 on the shower 5 to be connected to the condensate water feed pipe, thereby mix at shower 5 places from the saturation water of flash distillation 2 with from the condensate water of condensate water feed pipe, because shower is provided with spray equipment, institute is so that saturation water can mix fully with floods shower 5 places of condensing.Because condensing water temperature is lower, and have quite high temperature through the saturation water after the flash distillation, the mixing water of the two also has quite high temperature like this, thereby can reach the requirement of the high-temperature water inlet of deoxygenation 3 pairs of condensate water imports.Thereby this mixing water just can enter the deoxygenation head by the condensate water import 7 that is provided with in the deoxygenation 3 and carry out deoxygenation.Such setting has just remedied the deficiency that low-pressure heater is not set in the system, thereby has reduced equipment investment on the one hand, on the other hand waste heat is fully utilized.
Because deoxygenation 3 and deoxygenation water tank 4 are communicated with, just can enter to deoxygenation water tank 4 so pass through the condensate water of deoxygenation 3 deoxygenation, thereby flow into boiler feed pump, for boiler provides qualified feedwater by the delivery port that is arranged on the deoxygenation water tank 4.In the present embodiment, though flash distillation 2 and deoxygenation 3 is arranged in juxtaposition, flash distillation 2 but is not communicated with the deoxygenation water tank.
In the present embodiment, also be provided with at least one hydrophobic valve 1 between outlet 12 of the saturation water of flash distillation 2 and the shower 5, this valve can be the valve of any kind, as long as can play hydrophobic effect.Similarly, also be provided with at least one hydrophobic valve between the described heating steam import 13 of the heating steam of flash distillation 2 outlet 11 and deoxygenation 3, this valve can also be the valve that can play hydrophobic effect of any kind.For example: free floating ball type, lever float ball type, fall bucket type, half float-ball type, hot power and hot static(al) formula drain valve etc. and all be fine.
The position of each water inlet in the present embodiment and the position of delivery port are not to be fixed on the illustrated position, but any other position that can be as required, top, bottom or right side, left side all are fine.
Shower in the present embodiment can be the mixed water pipe of the spray effect of can playing of any kind, rather than is confined to a kind of shower of particular type.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification and the embodiment, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (5)
1. a feedwater expanding type oxygen-eliminating device is characterized in that, comprising:
The flash distillation head, it is provided with water inlet, heating steam outlet and saturation water outlet;
The deoxygenation head, itself and described flash distillation head are arranged in juxtaposition, described deoxygenation head is provided with heating steam import and condensate water import, and wherein said heating steam outlet is connected to described heating steam import by pipeline, and described saturation water outlet is connected to shower by pipeline;
Shower, it is arranged near the described condensate water import of described deoxygenation head, described shower has at least three joints, wherein first joint is connected to described saturation water outlet by pipeline, second joint is connected to the condensate water feed pipe, and the 3rd joint is connected to the condensate water import of described deoxygenation head by pipeline;
The deoxygenation water tank, its bottom by pipeline and described deoxygenation head is connected.
2. feedwater expanding type oxygen-eliminating device as claimed in claim 1 also is provided with at least one hydrophobic valve between the saturation water outlet of described flash distillation head and the described shower.
3. feedwater expanding type oxygen-eliminating device as claimed in claim 1, the water inlet of described flash distillation head is connected to waste heat boiler hot water section delivery port.
4. feedwater expanding type oxygen-eliminating device as claimed in claim 1, described deoxygenation water tank also has a delivery port, and the delivery port of deoxygenation water tank is connected to boiler feed pump by pipeline.
5. feedwater expanding type oxygen-eliminating device as claimed in claim 1 also is provided with at least one hydrophobic valve between the described heating steam outlet of described flash distillation head and the described heating steam import of described deoxygenation head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105259724A CN102022720A (en) | 2010-11-01 | 2010-11-01 | Water-supply capacity-expansion deaerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105259724A CN102022720A (en) | 2010-11-01 | 2010-11-01 | Water-supply capacity-expansion deaerator |
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| CN102022720A true CN102022720A (en) | 2011-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713058A (en) * | 2013-12-12 | 2015-06-17 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN113512432A (en) * | 2021-05-10 | 2021-10-19 | 武汉方特工业设备技术有限公司 | Coiled tube type coke oven riser waste heat utilization system and method capable of heating rich oil |
| CN113860414A (en) * | 2021-09-02 | 2021-12-31 | 华电湖北发电有限公司武昌热电分公司 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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| JPS5474354U (en) * | 1977-11-07 | 1979-05-26 | ||
| FR2497922A1 (en) * | 1981-01-15 | 1982-07-16 | Minnesota Mining Mfg France | Gas fired boiler with energy recovery - has vacuum deaerator and flue gas heat exchanger to cool exhaust gases |
| CN2695791Y (en) * | 2004-04-26 | 2005-04-27 | 谢毓麟 | Multi-steam source generating device by superheating steam / flash steam from waste gas of predecomposition cement production line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713058A (en) * | 2013-12-12 | 2015-06-17 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN104713058B (en) * | 2013-12-12 | 2017-05-24 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN113512432A (en) * | 2021-05-10 | 2021-10-19 | 武汉方特工业设备技术有限公司 | Coiled tube type coke oven riser waste heat utilization system and method capable of heating rich oil |
| CN113860414A (en) * | 2021-09-02 | 2021-12-31 | 华电湖北发电有限公司武昌热电分公司 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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Application publication date: 20110420 |